mms: added receipients picker

Allows selecting multiple contacts as mms receipients

PS2:
use different icon for add recipient

PS3:
fix layout of recipients list

PS4:
whitespace cleanup

PS5:
added search view in action bar

PS6:
whitespace cleanup

PS7:
rebase and cleanup

PS8:
filer contacts -> find contacts to be conform with contacts app

Change-Id: I6e68a9df026b68b509716533baadc8157338bd9e