Frameworks: EdgeGestureService give abbility to reduce the left and right trigger height if IME shows up

This patch gives the abbility that features can set the IME_CONTROL flag in addition to the position flags
to enable reducing trigger heights on the left and right edge to avoid conflicts with swipe keyboard.

Although the inputfilter lets come presses to the application trough the normal user behaviour is to start keyboard swiping
before they really even pressed the char button which results in conflicts with whatever feature is using the left and right
edge as trigger.

Features who want to use it need to set IME_CONTROL flag. As well if notification drawer was pulled down or global menu is
shown on top of the IME keyboard the original size gets restored till they are dismissed/closed

This patch adds only the support for it.

PS
- Fix small logic derp in BaseStatusBar
PS
- follow Josues suggestion and make the trigger a bit bigger

Change-Id: I51804d6e0768cc7770a6e52fac454dbad0ab632b

Conflicts:

	core/java/android/inputmethodservice/InputMethodService.java
	core/java/android/service/gesture/IEdgeGestureService.aidl
	policy/src/com/android/internal/policy/impl/GlobalActions.java
	services/java/com/android/server/gesture/EdgeGestureTracker.java