Feature/rating pop up (#760)

* WIP

* WIP

* Add text

* Cleanup

* More Cleanup

* Update Changelog

* Fix layout

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Co-authored-by: Florian Schulze <flori.schulze@yahoo.de>
Co-authored-by: Florian Ostertag <flokuep@users.noreply.github.com>

VocaluxeLib/VocaluxeLib.csproj

@@ -147,6 +147,7 @@
     <Compile Include="Menu\CParticleEffect.cs" />
     <Compile Include="Menu\CPlaylist.cs" />
     <Compile Include="Game\CPoints.cs" />
+    <Compile Include="Menu\CRatingPopup.cs" />
     <Compile Include="Menu\CScreenSetting.cs" />
     <Compile Include="Menu\CSelectSlide.cs" />
     <Compile Include="Menu\CProgressBar.cs" />