Statusbar: Time and Date actions

Clicking on the Time will open the alarm

Clicking on the Date will open the calendar

...I feel that this is more functional than chaning the time...

Inspired from cm

Change-Id: Ie5fa37bf937cc84f4018f8f2fc1005875003946e

Conflicts:
	packages/SystemUI/res/layout/status_bar_expanded_header.xml
Better Expanded desktop icons

- Thanks PA team for the base of the drawable

Change-Id: Ic10ee07d645130c599d65dbb6b7d91891e605ea1