Create host-side CTS module CtsInputMethodServiceHostTestCases

Bug: 7542467
Fix: 35336548
Test: Manually execute
	cts-tradefed run singleCommand cts-dev -m CtsInputMethodServiceHostTestCases
      and verify all tests passed.
Change-Id: I64c5195aa3db387853af8236c2b351a4785cc0d6
(cherry picked from commit b9000af75de24df618ba40f71b8f13e4ae161790)
3 files changed