chore(deadline): clean up UsageBasedLicensing construct and tests

[jusiskin]

Problem

There were a few minor issues with the UsageBasedLicensing construct that needed improvement:

1. The construct IDs it used internally were inaccurate/generic
2. Code that instantiated a UsageBasedLicensing construct needed to supply at least one of the memoryReservationMib or memoryLimitMib props. The intention was that the containers would grow to use available memory on the host container instance.
3. The log stream prefix defaulted to docker which is not intuitive when looking up the logs in CloudWatch
4. The tests were not very granular in the behaviors they were asserting and their names and organization needed clean-up

Solution

1. Rename the construct IDs to be meaningful and descript
2. Remove the need to specify memory props. Internally a memoryReservationMib of 1024 MiB is used and the containers will grow to use available memory from the hoist
3. The default log stream prefix was renamed to LicenseForwarder
4. The tests were reorganized and broken apart to be more granular

Testing

1. Performed a full build of the changes and confirmed that all of the tests passed
2. Deployed and tested the UsageBasedLicensing construct end-to-end successfully
   • confirmed that the license forwarder connects and is shown in the Deadline Monitor
   • confirmed that the license forwarder listens on the correct port when a job is submitted with a corresponding UBL limit attached

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By submitting this pull request, I confirm that my contribution is made under the terms of the Apache-2.0 license

[horsmand]

Was this left in by accident?

[jusiskin]

Yes it was - good catch. Fixed