support enum default values in imported zt methods

[mjkkirschner]

Purpose

#13671
https://jira.autodesk.com/browse/DYN-5506

at @aparajit-pratap's suggestion - instead of trying to generate and cast and int to an enum when we encounter an enum default value - instead generate a get method call for the generated getter which represents the specific enum field. This works as Enum types are imported into the VM as classes.

a test is added.

Declarations

Check these if you believe they are true

• The codebase is in a better state after this PR
• Is documented according to the standards
• The level of testing this PR includes is appropriate
• User facing strings, if any, are extracted into *.resx files
• All tests pass using the self-service CI.
• Snapshot of UI changes, if any.
• Changes to the API follow Semantic Versioning and are documented in the API Changes document.
• This PR modifies some build requirements and the readme is updated
• This PR contains no files larger than 50 MB

Release Notes

support enum default values in zero touch import

Reviewers