[1/2] Base: Clock tweaks

PS: changed to slim as base for commit:
- Clock and date enable/disable
- Clock and date position
- AM/PM styles multilang support
- color
- Date format
- Date style
Base: https://gerrit.omnirom.org/#/c/4938/
Revert this commit :

https://github.com/CyanogenMod/android_frameworks_base/commit/c5510b13740b6a3c3c670050a8e985b740831120