SystemUI: add Weather display to status bar header

Change-Id: Ic2fea861c36f405d8a0e64cc9224f47088ac6351
Signed-off-by: Roman Birg <roman@cyngn.com>

Conflicts:
	packages/SystemUI/res/layout/status_bar_expanded_header.xml
	packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBarHeaderView.java