Added AppStream metadata XML listing supported hardware. (#1399)

The AppStream metadata is package metadata shared across Linux distributions,
see https://www.freedesktop.org/software/appstream/docs/chap-Metadata.html .
It include support for mapping to relevant hardware IDs, like USB IDs in this
case.  This allow programs like isenkram to map relevant hardware to this
package, and propose to install the package when supported hardware is available
or inserted in a computer.

This patch was originally submitted to Debian as https://bugs.debian.org/1077343 .

The patch do not include installation rules to install the XML file and
referred XDG desktop file on request from tsteven4.

The XML files include metainfo enhancments from tsteven4.

Co-authored-by: Petter Reinholdtsen <[email protected]>

gui/org.gpsbabel.gui.metainfo.xml

@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- reference: https://freedesktop.org/software/appstream/docs/index.html -->
+<component type="desktop">
+  <id>org.gpsbabel.gui</id>
+  <metadata_license>MIT</metadata_license>
+  <project_license>GPL-2.0</project_license>
+  <name>gpsbabel-gui</name>
+  <summary>GPS file conversion plus transfer to/from GPS units</summary>
+  <description>
+    <p>GPSBabel converts waypoints, tracks, and routes from one common
+    mapping format to another or a serial upload or download to a GPS
+    unit such as those from Garmin.</p>
+    <p>This package contains gpsbabelfe, a QT based frontend for
+    gpsbabel.</p>
+  </description>
+  <url type="homepage">https://www.gpsbabel.org</url>
+  <url type="vcs-browser">https://github.com/GPSBabel/gpsbabel</url>
+  <launchable type="desktop-id">gpsbabel.desktop</launchable>
+  <provides>
+    <binary>gpsbabelfe</binary>
+    <modalias>usb:v091Ep0003d*</modalias>
+  </provides>
+  <requires>
+    <id>org.gpsbabel.cli</id>
+  </requires>
+</component>

org.gpsbabel.cli.metainfo.xml

@@ -0,0 +1,109 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- reference: https://freedesktop.org/software/appstream/docs/index.html -->
+<component type="console-application">
+  <id>org.gpsbabel.cli</id>
+  <metadata_license>MIT</metadata_license>
+  <project_license>GPL-2.0</project_license>
+  <name>gpsbabel</name>
+  <summary>GPS file conversion plus transfer to/from GPS units</summary>
+  <description>
+    <p>GPSBabel converts waypoints, tracks, and routes from one common
+    mapping format to another or a serial upload or download to a GPS
+    unit such as those from Garmin.</p>
+
+    <p>GPSBabel supports several data formats and will be useful for
+    tasks such as geocaching, mapping, and converting from one GPS
+    unit to another.  Among the interesting formats it supports are
+    the GPS Exchange Format (GPX), Keyhole Markup Language (KML), several
+    GPS devices via a serial link, and various Geocaching data formats.
+    GPSBabel also supports various filters to manipulate the data.</p>
+
+    <p>GPSBabel supports the following formats:</p>
+
+    <ul>
+      <li>arc: GPSBabel arc filter file</li>
+      <li>csv: Comma separated values</li>
+      <li>cup: See You flight analysis data</li>
+      <li>dg-100: GlobalSat DG-100/BT-335 Download</li>
+      <li>dg-200: GlobalSat DG-200 Download</li>
+      <li>exif: Embedded Exif-GPS data (.jpg)</li>
+      <li>garmin301: Garmin 301 Custom position and heartrate</li>
+      <li>garmin: Garmin serial/USB protocol</li>
+      <li>garmin_fit: Flexible and Interoperable Data Transfer (FIT) Activity file</li>
+      <li>garmin_g1000: Garmin G1000 datalog input filter file</li>
+      <li>garmin_gpi: Garmin Points of Interest (.gpi)</li>
+      <li>garmin_poi: Garmin POI database</li>
+      <li>garmin_txt: Garmin MapSource - txt (tab delimited)</li>
+      <li>garmin_xt: Mobile Garmin XT Track files</li>
+      <li>gdb: Garmin MapSource - gdb</li>
+      <li>geo: Geocaching.com .loc</li>
+      <li>geojson: GeoJson</li>
+      <li>globalsat: GlobalSat GH625XT GPS training watch</li>
+      <li>googletakeout: Google Takeout Location History</li>
+      <li>gpsdrive: GpsDrive Format</li>
+      <li>gpsdrivetrack: GpsDrive Format for Tracks</li>
+      <li>gpx: GPX XML</li>
+      <li>gtm: GPS TrackMaker</li>
+      <li>gtrnctr: Garmin Training Center (.tcx/.crs/.hst/.xml)</li>
+      <li>html: HTML Output</li>
+      <li>humminbird: Humminbird waypoints and routes (.hwr)</li>
+      <li>humminbird_ht: Humminbird tracks (.ht)</li>
+      <li>iblue747: Data Logger iBlue747 csv</li>
+      <li>iblue757: Data Logger iBlue757 csv</li>
+      <li>igc: FAI/IGC Flight Recorder Data Format</li>
+      <li>kml: Google Earth (Keyhole) Markup Language</li>
+      <li>land_air_sea: GPS Tracking Key Pro text</li>
+      <li>lowranceusr: Lowrance USR</li>
+      <li>m241-bin: Holux M-241 (MTK based) Binary File Format</li>
+      <li>m241: Holux M-241 (MTK based) download</li>
+      <li>miniHomer: MiniHomer, a skyTraq Venus 6 based logger (download tracks, waypoints and get/set POI)</li>
+      <li>mtk-bin: MTK Logger (iBlue 747,...) Binary File Format</li>
+      <li>mtk: MTK Logger (iBlue 747,Qstarz BT-1000,...) download</li>
+      <li>nmea: NMEA 0183 sentences</li>
+      <li>openoffice: Tab delimited fields useful for OpenOffice</li>
+      <li>osm: OpenStreetMap data files</li>
+      <li>ozi: OziExplorer</li>
+      <li>qstarz_bl-1000: Qstarz BL-1000</li>
+      <li>shape: ESRI shapefile</li>
+      <li>skytraq-bin: SkyTraq Venus based loggers Binary File Format</li>
+      <li>skytraq: SkyTraq Venus based loggers (download)</li>
+      <li>subrip: SubRip subtitles for video mapping (.srt)</li>
+      <li>text: Textual Output</li>
+      <li>tpg: National Geographic Topo .tpg (waypoints)</li>
+      <li>tpo2: National Geographic Topo 2.x .tpo</li>
+      <li>tpo3: National Geographic Topo 3.x/4.x .tpo</li>
+      <li>unicsv: Universal csv with field structure in first line</li>
+      <li>v900: Columbus/Visiontac V900 files (.csv)</li>
+      <li>vcard: Vcard Output (for iPod)</li>
+    </ul>
+
+    <p>GPSBabel supports the following filters:</p>
+    <ul>
+      <li>arc: Include Only Points Within Distance of Arc</li>
+      <li>bend: Add points before and after bends in routes</li>
+      <li>discard: Remove unreliable points with high hdop or vdop</li>
+      <li>duplicate: Remove Duplicates</li>
+      <li>height: Manipulate altitudes</li>
+      <li>interpolate: Interpolate between trackpoints</li>
+      <li>nuketypes: Remove all waypoints, tracks, or routes</li>
+      <li>polygon: Include Only Points Inside Polygon</li>
+      <li>position: Remove Points Within Distance</li>
+      <li>radius: Include Only Points Within Radius</li>
+      <li>resample: Resample Track</li>
+      <li>reverse: Reverse stops within routes</li>
+      <li>simplify: Simplify routes</li>
+      <li>sort: Rearrange waypoints, routes and/or tracks by resorting</li>
+      <li>stack: Save and restore waypoint lists</li>
+      <li>swap: Swap latitude and longitude of all loaded points</li>
+      <li>track: Manipulate track lists</li>
+      <li>transform: Transform waypoints into a route, tracks into routes, ...</li>
+      <li>validate: Validate internal data structures</li>
+    </ul>
+  </description>
+  <url type="homepage">https://www.gpsbabel.org</url>
+  <url type="vcs-browser">https://github.com/GPSBabel/gpsbabel</url>
+  <provides>
+    <binary>gpsbabel</binary>
+    <modalias>usb:v091Ep0003d*</modalias>
+  </provides>
+</component>