Add alarm API module ricxappframe.alarm.alarm
New python module provides data types like AlarmDetail and
an AlarmManager class to create, raise and clear alarms by
sending messages via RMR, which should route to Alarm Adapter.
Builds JSON messages to match implementation in ric-plt/alarm-go.
Add JSON schema for alarm message as documentation.
Bump xappframepy version to 1.2.0.
Issue-ID: RIC-380
Signed-off-by: Lott, Christopher (cl778h) <cl778h@att.com>
Change-Id: I746bca0c0982314b6837c042b60747398a92f456