Themes: Contacts: allow theming via theme chooser

Squashed commit:
https://github.com/AOSPA/android_packages_apps_Contacts/commit/c6fadbf49584aea826234327a5288f80adbce138

Change-Id: Iddd6874ed420611a98d64aadede0bb203a707f2b

Conflicts:
	res/layout/quickcontact_photo_container.xml
	res/values-sw600dp/styles.xml
	res/values/styles.xml