cmsdk: Rework the PerformanceManager

 * Added a proper API for this thing
 * Pass objects around with necessary metadata, pre-filtered and sorted
 * Added event log and service dump
 * Simplified locking and adjusted for performance / correctness
 * Clarified/beautified code where possible
 * TODO:
   - Write profile descriptions
   - Finish the UI
   - Clean up javadocs
   - Do something with per-app profiles, maybe

Change-Id: Ie2ef84031e81a18e95dcd62392c7e6939860d933