[WCP-146] Building a QuarterHourCheck annotation validator to make sure minutes selected are 0, 15, 30, or 45.
[WCP-146] Creating subpackages for annotations and validators
[WCP-146] Creating class level annotation validation for Session End Time checks
[WCP-146] Reenabling display of Session Title in edit ui
[WCP-146] Adding unit tests for QuarterHourCheck annotation
[WCP-146] Adding unit tests for SessionEndTimeRangeCheck annotation
Merge remote-tracking branch 'origin/uw-master' into uw-master