Adding voicemail transcription state to voicemail database

This database change involves 2 related cl's, one to define the new
column and one to update the database schema (ag/2129944, ag/2129909)

Test: run cts -t android.provider.cts.contacts.VoicemailContractTest -m CtsProviderTestCases
Bug: 37340510
Change-Id: I277ab08b88699c81db7af425368714660aff094e
3 files changed