Telephony(MSIM): Integrate AOKP statusbar features & bug fixes

PS1:
- Fix Alternate Signal Layout & signal per app color from QCRIL merged
- Fully integrate Alternate Signal Layout into MSIM
- Add option to hide signal bars

PS2:
- Fix Alternate Signal Layout in TabletUI
- Fix margin in system bar notification area

PS3:
- Fix derp
- Add Signal Text

PS4:
- Add WiFi Signal Text

PS5:
- Increase themeability of Signal in statusbar
- Cleanup & fix signal indicator style behaviour when showingAltCluster

Change-Id: Iee7f2b9e52bd4f433d30c1eada5f8335d23621f7