feat: [FC-0065] course credentials as verifiable credentials

[kyrylo-kh]

Description:
Add the ability to generate verifiable credentials for course credentials

Reference to Funded Contribution:
https://openedx.atlassian.net/wiki/spaces/COMM/pages/4574642181/FC-0065+-+Credentials+Enhancements

Related PR's:

• feat: [FC-0065] display course credentials on VC page frontend-app-learner-record#469

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[deborahgu]

This looks good to me. I had some questions but the answers to all of them might be "yeah, that's totally fine."

There is one docstring that needs to be updated but other than that this looks real solid.

[deborahgu]

looks good to me. thanks for the answers and changes!

[GlugovGrGlib]

Hey @kyrylo-kh apologies for the delay with the review, I will try to publish it today. Meanwhile, could you please add references to Funded Contribution [FC-0065] in the title and PR description?

[GlugovGrGlib]

Code looks great, left one non-blocking comment about older documentation corrections.
LGTM!