Add Buttons settings drawable

Change-Id: I8a684dafc823e580d855ed608130fd14f8684cd9
Update Profiles settings icon

Switch to vector drawables to fix blurry drawables

Change-Id: Id3f5e3ad408c4d17659d941f68853379b07c688f
Update the Privacy category drawable

Replace the current ones with new vector drawables

Change-Id: I27a6778d876672c78469b886e2574baa149aad80

Conflicts:
	res/drawable-hdpi/ic_settings_privacy.png
	res/drawable-mdpi/ic_settings_privacy.png
	res/drawable-xhdpi/ic_settings_privacy.png
	res/drawable-xxhdpi/ic_settings_privacy.png