[misc] Add usecase for calendar.

-Fail Reason: the object of tizen.calendar is undefined.

Impacted tests(designed): New 1, Update 0, Delete 0
Unit test platform: [Tizen IVI]
Unit test result summary: Pass 0, Fail 1, Block 0
Merge pull request #450 from minxhuang/hm/misc/usecase-tizen/calendar

[misc] Add usecase for calendar.