Implementing conversions from int to System.Windows.Media.Color for MaterialColorUtilities

[MovGP0]

• Implemented conversion methods for colors given as int to System.Windows.Media.Color
• Added unit tests for the conversion methods and for showcasing schema generation.

Notes:

• System.Windows.Media.Color is not available when targeting Non-WPF (WinForms, MAUI, MacOS, Linux, etc.) plattforms. E.g. the following is not supported:
  • MAUI (Microsoft.Maui.Graphics.Color)
  • WinForms (System.Drawing.Color)
  • Splat (Splat.SplatColor)
• The current methods do not easily support the scenario that the user wants to pick secondary/tertiary/error/panel colors manually. We may want to implement custom factories for this purpose.
• I've added a dependency to Shouldly to implement multi-asserts properly

[MovGP0]

ℹ️ The follwoing changes where ammended:

• Added a factory method for creating dynamic color schemes with colors that can be overriden by the user

[MovGP0]

ℹ️ The follwoing changes where ammended:

• removed conditional WPF checks.