Fix bugs causing Query/Collection query index management FIT tests to fail

Quite a few categories of the FIT Collection Query/Query Index management tests are failing due to SDK bugs - a summary:

• Missing roles tests - all failing:
  • Usually getting an InternalServerException instead of AuthenticationFailureException
  • dropPrimaryIndexWIthDefaults - throwing an IndexExistsException when trying to create the primary index with permissioned user (even on a fresh cluster)

• Collection query index Invalid options tests - All failing as SDK isn't checking the options, either unexpectedly succeeding or returning incorrect exceptions
• watchingAbsentIndexThrowsException - watchIndex runs until it times out.
• Occasionally the performer will crash when within watchIndex with 

  libc++abi: terminating due to uncaught exception of type std::__1::future_error: The state of the promise has already been set.