TRDS: Dark InCallUI

PS2:
- moved into right folder

PS3:
- redirect colors of original layout xml

Change-Id: I5bcfeb692bc4653e240df7c47216826452ee7d47
In-Call UI from blue to white

we changed the default dialpad from blue to white
but forgot this in call dialpad,
make it white ui to be consistent

Change-Id: Ie715340d69adb1514e5f1d5bb159b8c42494015a
trds: cleanup!

drawables not needed anymore after this
https://gerrit.slimroms.net/#/c/1675/

Change-Id: Ic237384fe60f23dd2b953da5d7be36c9a4c1191d
InCallUI: Incoming Call in Background (1/3)

Patch ported from 4.2 which was done by our lovely HCP. A
very popular one so we bring it back and adapt it to 4.4

Allows user to set that Incoming Call UI will remain in background
if screen is on. Instead, a notification is added to StatusBar, which
can be used to bring up the Incoming Call UI. Ringtone and vibration
still occur as per system settings.

This has the same effect as apps marked as "immersive". It prevents
the incoming call from backgrounding the current activity.

PatchSet:
- show normal inCallUI if keyguard is currently active

PS:
- cleanup

PS
- do not try to get the services if the feature is disabled

PS:
- do not disable notificationshade and navbar if it is a background call

PS:
- derp

Change-Id: I68e432a548c10d07cc9d668782cb544fbb4d421d