Update NotificationPanelView.java

Part 1 - Swipe Notification bar to switch between Notifications & Quick Settings. Tested with v20.1.0 working beautifully!
Update PhoneStatusBar.java

Part 2 - Swipe Notification bar to switch between Notifications & Quick Settings. Tested with v20.1.0 working beautifully!
Merge pull request #6 from xLaMbChOpSx/cm-10.1

Swipe between Notifications & Quick Settings