Bundle color definitions on Android

Merged Nicolas Fella requested to merge work/androidcolors into master

On Android we want to be able to switch between a light and dark color scheme. To do that we need the .color files.

Usually they are shipped with the breeze repo, but that is not used at all on Android.

By installing them the files become available as assets in the application and (a patched) KColorSchemeModel can find them.

This way the files are duplicated in our code, but I can't think of a better alternative.

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