- Updated NuGet packs

- Added quality switcher to livestreams
- Fixed SettingsStorage cast
- Completed ManifestGenerator (but still doesn't work)
- Refactored and redesigned player
- Created test project

FoxTube.Tests/UnitTestApp.xaml

@@ -0,0 +1,7 @@
+<Application
+    x:Class="FoxTube.Tests.App"
+    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+    xmlns:local="using:FoxTube.Tests">
+
+</Application>