Refactor for system helper overlay phase 3.

List of modules included in this cl:
sysui-helper
google-sysui-helper
google-system-helpers
system-helpers

List of tests refactored:
QuickSettingsTest

Test: make system-helpers -j40
Test: make google-system-helpers -j40
Test: make google-sysui-helper -j40
Test: make sysui-helper -j40
Test: make SettingsFunctionalTests -j40
Test: make LauncherFunctionalTests -j40
Test: make AndroidBvtTests -j40
Test: make tv-sysui-app-helper -j40
Test: make TvSettingsTests -j40
Test: make TvSysUiTests -j40
Test: make tv-play-movies-app-helper -j40
Test: make leanback-app-helpers -j40
Test: make Power -j40
Change-Id: Ib501d9c4974a13246d207176f7d2541021902847