Add swipe to switch feature

Thanks to whoever made this commit: https://github.com/CarbonDev/android_frameworks_base/commit/53cda8d0e3f00a632d4237c188b3b6efd55f287d

(cherry picked from commit 13a6f99fbbbd3828d5916c4d2257420a3e4cf493)
(cherry picked from commit 88da5c9441df90b56190f75b5f762d865fcbfad0)

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