Fill in the correct start/end time in the event details page when the...

Fill in the correct start/end time in the event details page when the Events.CONTENT_URI intent started by a 3rd party is missing the start/end time.

For recurring events, the date shown will be the 1st instance.

Bug:6687331
Change-Id: I885bce545138f7342d01650393f9536544132722