Add new CWL extensions tests.

[DailyDreaming]

The extensions can be found here:

• https://github.com/common-workflow-language/cwltool/blob/main/cwltool/extensions.yml
• https://github.com/common-workflow-language/cwltool/blob/main/cwltool/extensions-v1.1.yml

The tests are at https://github.com/common-workflow-language/cwltool/blob/main/tests/test_ext.py

The tests should be copied over and run in Toil.

┆Issue is synchronized with this Jira Story ┆Issue Number: TOIL-849

[unito-bot]

➤ Adam Novak commented:

Of these extensions, I think we implement CUDARequirement for GPU support in CWL. I’m not sure if we have tests for that.