Fix "add field" logic

- Only update "add field" footer when field goes empty --> non-empty
and vice versa, fix the case for 4 line addresses in Exchange contacts
- Add property in DataKind class for "add field" string
- Remove hash map of mime types --> string resource IDs in
KindSectionView
- Remove "add internet call" string

Bug: 4363151
Bug: 4371568
Change-Id: Id2fec743a7c3e68d8404591cc61de20487245b0a
12 files changed