0.6.0: Add SuffixAutoColon Mode, Windows Support

This releae adds two major features:

• This adds a new configuration option, SuffixAutoColon, which puts a colon
  after the suffix if there's a message
• Add better support for printing (clearing) the line for Windows terminals

0.5.0: Delay updates preempt, remove suffix colon, concurrency fixes

• CharSets() method now returns an error
• When printing the suffix, a : isn't implicitly added
• When updating the refresh delay, the painter can be preempted if the delay is
  shorter and should trigger a paint
• Has many fixes to make the spinner safer for concurrent modification, while
  making the internal implementation simpler

0.4.0

• make painting loop preemptible, providing better behaviors for updates to the delay duration and stopping the spinnner

0.3.0

• add Config.HideCursor bool field for having the spinner hide the cursor when running

0.2.0

• add StopFail() method and associated Config fields and configuration methods to support failure stop scenario (for different character, colors, and message)
• If no color specified for Colors, StopColors, or StopFailColors don't assume we want a color (even if just white).
• No longer generate CharSets 37 and 38 at runtime; make them part of the literal so users can see them in the documentation.

0.1.3

• reset index to 0 when reversing charset, to ensure it is painted properly

0.1.2

• move line erase to immediately before the paint of the next one, to reduce time in between

0.1.1

• reset internal spinner index on Stop(), so that a following call to Start() draws the spinner successfully

0.1.0

• initial commit of yacspin implementation (NO TESTS!)

0.0.0

Repo creation