Programs and RecordedPrograms have a lot in common. This change
introduces BaseProgramColumns which removes the duplicates.
This will be also helpful for the further clean-up.
Test: build & passes CtsTvTestCases without modification
Bug: 34853064
Change-Id: I4ad352a9a904e7fef57c56acec5583df92b4226c
c6eb54ce43