PerformanceTool: add wakelock fragment

-shows kernel and partial wakelocks
-display data since boot or a reference point

PS3:
-fixed fragement switching in drawer mode

PS5
-added support for /proc/wakelocks format

PS7
-added wakelock time display and filter

PS9
-for ByteHamster :)

Change-Id: I5136e26494ae06f6c3f32153066cc32f75b61b6c