Settings: add new slim actions

add central strings and array for it

Change-Id: I68b2a5176fd0106c10c533242f5b41d5935c9e0a

Conflicts:
	res/values/slim_strings.xml
Settings : Filter spam notifications

Change-Id: I4056aceada3cf8397827037bcb52388de9f8b9fc

Conflicts:
	res/values/cm_strings.xml