Added Network stats - Credit to Lichti

Conflicts:
	packages/SystemUI/res/layout/status_bar.xml
	packages/SystemUI/res/values/dimens.xml
	packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBarTransitions.java

Change-Id: I390a419360cdd12449ca91d49430d54c94843e44