* Add --requests and --limits resource flags
Fixes#490
- Add deprecation message for --requests-cpu, --requests-memory,
--limits-cpu and --limits-memory flag usage.
- Add error message if new and deprecated, requests and limits flags
are used together.
* Add resources requests and limits example for service create
* Add mock style unit tests
* Update existing unit tests for deprecated flags
* Add integration tests
* Add CHANGELOG entry
* Fix lint warnings
* Add unit tests for resource flags
* Fix typo for service name in e2e tests
* Refactor resource validation utility into test lib
* Remove commented out code
* Add references about managing resources and GPU in example
* Update image references in examples
* fix(e2e): Refactor e2e utils and resource actions
brings commonly re-used utilities into lib/test so they can be resused
and e2e can be run selectively for eventing/serving.
* Refactor service and revision e2e test utils into test lib
* Docstrings for exported e2e test utils
Navid Shaikh