fb: add theme switch (TRDS) to navbar and navring

and show toast if a mode is running wich does not support
lightsensors

- rebase

Change-Id: Ie89589e1e0343e734728f0db00171a4e137370bb

Conflicts:
	core/java/com/android/internal/util/slim/ButtonsConstants.java
	core/java/com/android/internal/util/slim/ButtonsHelper.java
	core/java/com/android/internal/util/slim/SlimActions.java
	core/res/res/values/slim_strings.xml
	core/res/res/values/slim_symbols.xml
	packages/SystemUI/src/com/android/systemui/SearchPanelView.java
QS: add theme switcher tile (TRDS) 1/2

this adds a theme switcher tile

normal click: turn on/off dark/light theme
longpress: switch between the auto modes (manual/light sensor/twilight)

Change-Id: I62b8e11b5714c179ccbf1c1e341b47c84da0fb56

Conflicts:
	core/java/com/android/internal/util/slim/QSConstants.java
	packages/SystemUI/res/values/slim_strings.xml
	packages/SystemUI/src/com/android/systemui/statusbar/phone/QuickSettingsController.java
trds:[framework] dark images adjustments

Change-Id: Ie038c4a1aa535708c23f099fb5e836407e3d1603
TRDS: Dark DocumentsUI

for Downloads app

PS:
- fix settings

Change-Id: I87d49e97b8a0a67bd4d85f0137eb0960155428cb
trds: improve dialogs and menu popups

Change-Id: I54da4ac0236dfe16ee964ccb070944206d0544e2