[settings] Add help labels and reorder some group settings

Add some help label and information about some strings for translators
Move discovery settings into their own specific group

pvr.hdhomerun/resources/language/resource.language.en_gb/strings.po

@@ -24,6 +24,7 @@ msgctxt "Addon Description"
 msgid "HDHomeRun PVR Client"
 msgstr ""
 
+#. label-category: general
 msgctxt "#32001"
 msgid "General"
 msgstr ""
@@ -44,10 +45,35 @@ msgctxt "#32005"
 msgid "Mark new show"
 msgstr ""
 
+#. label: Device Discovery - http_discovery
 msgctxt "#32006"
 msgid "Use HTTP discovery"
 msgstr ""
 
+#. label: Device Discovery - force_ip
 msgctxt "#32007"
 msgid "Set IP of device to use"
 msgstr ""
+
+#. label-group: General - Device Discovery
+msgctxt "#32008"
+msgid "Device Discovery"
+msgstr ""
+
+#empty strings from id 32009 to 320099
+
+#. ############
+#. help info #
+#. ############
+
+#. help info - General
+
+#. help: Device Discovery - http_discovery
+msgctxt "#32100"
+msgid "This uses Silicondust web API to return HDHomeRun devices connected with the same internet IP address"
+msgstr ""
+
+#. help: Device Discovery - force_ip
+msgctxt "#32101"
+msgid "When other discovery methods do not work, enter an [B]IPv4[/B] address of a HDHomeRun device to explicitly search only that IP. This works when Broadcast and HTTP discovery do not find devices due to LAN/WAN differences in Client/Tuner. Restart Addon by Disabling and Enabling when changed."
+msgstr ""

pvr.hdhomerun/resources/settings.xml

@@ -23,12 +23,14 @@
           <default>true</default>
           <control type="toggle"/>
         </setting>
-        <setting id="http_discovery" type="boolean" label="32006">
+      </group>
+      <group id="2" label="32008">
+        <setting id="http_discovery" type="boolean" label="32006" help="32100">
           <level>0</level>
           <default>false</default>
           <control type="toggle"/>
         </setting>
-        <setting id="force_ip" type="string" label="32007">
+        <setting id="force_ip" type="string" label="32007" help="32101">
           <level>0</level>
           <default></default>
           <constraints>