Add high power whitelist for apps

 - Strings not final!
 - New UX for power usage details (more preferency)
 - Add high power apps list shows on/off and screen to
   change (when possible)
 - Link from power usage summary to high power list
 - Link from advanced apps to high power list

Bug: 19991702
Change-Id: I97c927ed82d3b89041e4429b427508545763d66c