[1/2] InCall: Add a non-intrusive dialog for incoming calls

Change-Id: I7c8b5cc5138a5543be30579e99bd9989624e2abe
[3/3] InCallUI: allow disabling non intrusive incall ui

Change-Id: I86bd4b46f031004fa90f1d7936263f9dabcd3860
TRDS: Dark InCallUI

PS2:
- moved into right folder

PS3:
- redirect colors of original layout xml

Change-Id: I5bcfeb692bc4653e240df7c47216826452ee7d47