Utility - added scaling of colors via multiply operator

[stephenhensley]

I think there's a lot of useful stuff we can do with the Color class, and possibly rework it to not require the Init, etc.

However, for now this is immediately useful on it's own for anyone actually using the existing Color class.

[github-actions[bot]]

Unit Test Results

150 tests  ±0   150 :heavy_check_mark: ±0   0s :stopwatch: ±0s   16 suites ±0       0 :zzz: ±0      1 files   ±0       0 :x: ±0 

Results for commit c159f62e. ± Comparison against base commit d6f0f1f6.