Add tests for the object element
Update according to the review comments

1. Change the manual test to reference test
2. Refactor the events tests
3. Remove the usemap test
4. Update the test and assert descriptions and etc

Signed-off-by: xiaojunwu <xiaojunx.a.wu@intel.com>
Update according to review feedbacks
Rewrite the object-fallback.html
Resolve issues
Test Assertions 3.1, 3.2
Fix variable name
gotpointercapture must be fired asynchronously
lostpointercapture must be fired asynchronously
Add TA references for 10.2 and 11.2
Address critic review comments for pointerup tests
Clean up pointermove tests based on pointerup test review comments
Remove the requirement to implement showModalDialog from window-properties.html.

The future of this feature is uncertain, and there is no good reason for this
test to require it. However, if it is implemented, we'll still test that it's
implemented correctly.
Address GitHub review comments for pointerup tests
Clean up pointermove tests based on pointerup test review comments
Update pointer capture tests to clarify asynchronicity
Uncomment tests in nodeNuked in historical.html.
IndexedDB: Fix abort-in-initial-upgradeneeded assertions
Make the tests that rely on pointercancel dispatch scrollable, so the pointercancel actually dispatches
Fix typo