New ime jank test suite

Eight Tests in total:
1. Open handwriting canvas from remote input
2. Open handwriting canvas from input box activity
3. Open keyboard from remote input
4. Open keyboard from input box activity
5. keyboard simple input
6. keyboard complex input (including spaces and del)
7. keyboard gesture input
8. keyboard toggle more candidates.

Change-Id: I776488ffc88b19fc1a2f302245b011a27a068ff3