base: wake screen for torch gesture and start torch app

requires https://gerrit.omnirom.org/9004

Change-Id: I194f00c7f7d9c9e881761971e7b2b535172e6164
Merge "base: wake screen for torch gesture and start torch app" into android-4.4
Merge remote-tracking branch 'omni/android-4.4' into android-4.4