Messaging: Add "Mark as read" and "Quick reply" quick action

res/drawable/ic_wear_read.xml

res/values-zh-rCN/exthm_strings.xml

res/values-zh-rHK/exthm_strings.xml

res/values-zh-rTW/exthm_strings.xml

res/values/exthm_constants.xml

res/values/exthm_strings.xml

res/xml-v21/preferences_application.xml

res/xml-v23/preferences_application.xml

res/xml/preferences_application.xml

src/com/android/messaging/datamodel/BugleNotifications.java

...android/messaging/datamodel/MessageNotificationState.java

src/com/android/messaging/datamodel/NotificationState.java

src/com/android/messaging/receiver/NotificationReceiver.java

src/com/android/messaging/ui/UIIntents.java

src/com/android/messaging/ui/UIIntentsImpl.java