Properly generate latest profile

[vladbarosan]

Fix remaining from #1054

Currently the latest profile is not generated respecting the stable/preview folder stucture of the rest specs api.

[marstr]

To elaborate, in order to fix this, I'm writing two command-line utilities:

1. A tool that inspects the specs repository, to find all "preview" and "stable" README and their tags.
2. A tool that determines the Go package names from a list of Azure REST API Spec READMEs and tags.

This modular approach will still sit behind go generate so no extra complexity should be exposed to the end users. However, this is also necessary functionality for the Swagger -> SDK tooling. I've chatted with @lmazuel this morning to make sure that tool 1 fits the Swagger -> SDK needs.

[vladbarosan]

@marstr I think both of does are being done in the generator, you can pull them from there. Otherwise sounds good decoupling the first one from the generator.

[marstr]

I'll make sure to checkout the generator, to make sure I'm not duplicating any code.

[marstr]

Part 1 of this is done (albeit with some polish missing.) For now, the code can be found here: https://github.com/marstr/az-rest-spec-finder

[marstr]

Putting this back in the triage bucket

[jhendrixMSFT]

Fixed in latest, will ship in v24.