Bug: can't pass struct arrays to WinRT methods

[FrayxRulez]

Description

Passing a struct array (ie Color[]) to a WinRT exported method causes an exception to be thrown within CsWinRT:

Cannot provide IReferenceArray`1 support for element type 'Windows.UI.Color'.

This happens for any struct not explicitly referenced in ProvideIReferenceArray

Steps To Reproduce

1. Export a WinRT method that accepts IVector<Windows.UI.Color>
2. Pass a List to it, notice that everything works fine
3. Pass a Color[] to it, notice that the call will fail

Expected Behavior

Passing around struct arrays causes no issues

Version Info

Happens with both stable and 2.3.0 prerelease

Additional Context

No response

[FrayxRulez]

Please, don't just add Color to ProfileIReferenceArray 😅 it's just an example, in our code we have different methods accepting custom structs.