Revert "Halo: allow choose notifications on floating window or not (1/2)"

This reverts commit 1cd476f3f09c6cd51069e2ab6a1ddd66fbcd14b5.
Revert "Bring floating window in line with ParanoidAndroid"

This reverts commit d79ed6b4896711b2a8a1060d7d84a7282efce4c1.
Revert "Kill floating activities running in the same thread when tapping outside"

This reverts commit c40fda1e25ce95c5f802e1c158a5fb95a0c990dd.
Revert "Floating window: Enable transparent layer"

This reverts commit 21e800205ef2939529cb56a9989801fe7a44a54c.
Revert "fix styles"

This reverts commit 725c13c73d4b738117d5050922ec1b835d7f6976.
Revert "Base: Floating window with multitasking"

This reverts commit 36af70f999454c36b45013dd27c2c8602354aba1.

Signed-off-by: aways <aways@c-rom.org>

Conflicts:
	core/res/res/values/crom_strings.xml
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

Change-Id: Iad00c239de7d66e8bb45205ce626d4f08417b7cd