BView-related code removed or disabled, of course, but this now uses
the ColorConversions class, and adds some more ImportBits APIs from that.
Change-Id: I805cef159bac52173ef16030eae69e83db6f061b
Reviewed-on: https://review.haiku-os.org/c/haiku/+/9391
Reviewed-by: waddlesplash <[email protected]>