DeskClock: Implement QTI Enchanced features for Android N

(1) support delay alarm feature when phone_hook state
(2) support force alarm alert when device volume is zero
(3) support missed the alarm feature when phone_hook state
(4) Ux enhance feature: support audio media in SDCard as the alarm alert feature
(5) Ux enhance feature: add default alarm alert setting item to Setting Actitiy
(6) Ux enhance feature: support manual add city&timezone pair to City DB
(7) Ux enhance feature: shake do specified action when alarm alerting
(8) Ux enhance feature: flip do specified action when alarm alerting

CRs-Fixed: 1014635

Change-Id: I8b027479025e535248dd3e575bc062cedb7c33ae