PerformanceControl: rework time in stats fragment

-support overall stats (need kernels support https://gerrit.omnirom.org/9005)
-enable refresh/reset/restore support
-added active time stat filter

PS4
-added share action
-reset saved offsets on boot

Change-Id: I4255457c382a724ccb5774714ce52dcab924ccbf
Merge https://github.com/omnirom/android_packages_apps_PerformanceControl into kk4.4

Conflicts:
	src/com/brewcrewfoo/performance/service/BootService.java

Change-Id: Ib25063a5a65b173ee70bf438b7e0d6ebfcd141bb