MultipleHAMTests Scenario 1: Test 3 application provided HAMs with @Priority

[Yas-Franco]

Testing 3 application provided HAMs, ensuring @priority is considered. We also need to check the logs for:

• A clear info message showing which HAM was selected (for multiple HAM resolution)
• A clear info message showing which HAMHandler was selected (it will be the in-built one of course)
• No unexpected error messages are output.

Negative testing:

• Raise AmbiguousResolutionException (including log file message) - this is done by having two custom HAMs with the same @Priority values.