Promote generic columns up to MediaColumns.

Based on feedback from developers, they need to query these columns
on the general "Files" table, so we need to promote them to the
general "MediaColumns" common interface to make them available.

Bug: 130254706
Test: atest --test-mapping packages/providers/MediaProvider
Change-Id: I66afa14799ae42deea519d121177b2c8469889ab