feat: adds metadata versioning for terraform modules

[g-awmalik]

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Fixes #2040

[g-awmalik]

@bcoe - please review when you get a chance.

[bcoe]

One nit, I think the logic can be simplified slightly.

Also, I left a question about the findFilesByFilenameAndRef method, it would be good to confirm that it returns an empty array if no results are found.

[g-awmalik]

One nit, I think the logic can be simplified slightly.

Also, I left a question about the findFilesByFilenameAndRef method, it would be good to confirm that it returns an empty array if no results are found.

PTAL.