Quiet hours: Add ringer option
Includes ascending ring volume option
Based on these commits:
https://github.com/SlimRoms/packages_services_Telephony/commit/239447032c7a07960e78af074df94c660bfffce1
https://github.com/SlimRoms/packages_services_Telephony/commit/43f18834573505ad4152c6d55fac21773a62e45d