Update the requirements for being an SMS app in KLP

SMS applications need to handle repsond-via-message (for rejecting a phone
call with an SMS message) and SENDTO with the smsto Uri scheme so that
contact applications can direct the user to the right app. This change also
adds permission requirements for the existing intents that SMS apps
implement.

Bug: 10870624 System should direct "SENDTO" intent with "sms" and "mms" schemes to the default SMS app
Bug: 10818880 Telephony needs to direct RESPOND_VIA_MESSAGE intent only to the default SMS app
Change-Id: I373268bb694f155fb08e2864ae86af345a85c4ff