Add markup support for different color formats

[mrlacey]

Is your feature request related to a problem? Please describe.

XAML only includes native support for RGB[A] format colors.
It's increasingly common for colors to be specified (outside of XAML) in a format other than as RGB

Describe the solution you'd like

to not have to manually do the conversion and then specify the original as a comment next to it.

Add a markup extensions for hsl, lab, and lch

also, add analyzers for when used

Describe alternatives you've considered

Additional context