Base: Floating window with multitasking

basic floating window are taken from AOSPA (HALO) by @D4rKn3sSyS

Drawables courtesy of @Alex Cruz thanks to him :)

with heavy change to get this work for multitasking

this feature, has ability to:
1. Moveable window to various position
2. Scaling window with 2 finger like zoom in/out
3. Double tap in actionbar or above window to fullscreen or back to floating window
4. Automatically resize when Snapping into one of side (Top, Bottom, Left, Right)
   (taken from xhalofloatingwindow by @zst123)
5. Automatically switch focus from other app (taken from multiwindow by @xplodwild)
6. Unlimited floating window app (depends on RAM)

this is still under testing, to make fully works
so if there any bug because of this, DO NOT REPORT INTO OMNIROM JIRA

to make app launch using Floating window feature

you must add Intent.FLAG_FLOATING_WINDOW
before start an activity

for example you can look at https://gerrit.omnirom.org/6515

need https://gerrit.omnirom.org/#/c/6561

PS.17 : fix scaling
PS.18 : fix layout calculation when rotate
PS.19 : support minimize/maximize window (see App circle sidebar)
PS.20 : fix previouse app

Change-Id: Iad00c239de7d66e8bb45205ce626d4f08417b7cd

Conflicts:
	core/java/android/app/Activity.java
	core/java/android/app/IActivityManager.java
	core/java/android/content/Intent.java
	core/java/android/view/IWindowManager.aidl
	core/res/res/values/custom_strings.xml
	services/java/com/android/server/am/ActivityStack.java
	services/java/com/android/server/wm/WindowManagerService.java
SystemUI: Battery View Fixes

Fix inconsistent battery tile showing
	if battery is disabled in statusbar

PS2: Immediate update on inflate

Change-Id: I84618fb585eb700409932177041fa8ca3cadf92a
Another minor speed tweak
Notification Shade: add boost hints to onTouchEvent override

PS2: rebase/fix merge conflicts

-VanirAOSP

Change-Id: I5ab5d5a5cc351da5ea3e1dda0d1aba77913a6dd7

Conflicts:
	packages/SystemUI/src/com/android/systemui/statusbar/phone/NotificationPanelView.java

Conflicts:
	packages/SystemUI/src/com/android/systemui/statusbar/phone/NotificationPanelView.java
Cleanup settings indents and whitespace
power: Add panel auto-brightness configuration

 * Some panel hardware requires that we twiddle some knobs in sysfs to
   enable proper display calibration (gamma, etc) when auto-brightness
   is enabled. Add a configuration value to handle this.

Change-Id: I3c793c3520fc6f9a18d5a3abf1fe0df803c5e580

Conflicts:
	core/res/res/values/config.xml
	core/res/res/values/symbols.xml

Conflicts:
	core/res/res/values/crom_symbols.xml
AOKP custom system animations (1/2)

Ported from here: http://gerrit.aokp.co/#/c/12304/

Thanks to Steve Spear

Change-Id: I38bc7b83edaff3c455f0dfe3ea5ede54a20ae07