Implement did generator

[anjastrunk]

No description provided.

[martinmo]

Reviewed and tested on the CLI locally (which works 👍). In addition to my inline comments, I have two general suggestions:

• Re-add the README that was part of the original PR that was closed in favor of this one.
• Make it easier to "demo" for someone:
  • In order to try the CLI, I had to create a certificate and a key. For this, I reused the test data in created in the DidGenTestCase and exported them to files via interactive Python console, which was too cumbersome IMHO.
  • What can I do with the resulting DID json file? Can I feed it to some other tool?

The last question also makes me think if the DID creation test pipeline could benefit from integration testing with another tool – not maintained by us – which reads a DID and does something with it.

[martinmo]

• Re-add the README that was part of the original PR that was closed in favor of this one.

Adding to that: I suggest adding a link to the following two documents, which I found helpful for getting to know Decentralized Identifiers and the context in which they are used: https://w3c-ccg.github.io/did-primer/ and https://w3c.github.io/did-use-cases/ (for the latter one, the "Use Cases" section was helpful in my opinion).

[anjastrunk]

* Re-add the README that was part of the original PR that was closed in favor of this one.

You are completely right, I forgot to copy README

* Make it easier to "demo" for someone:
  
  * In order to try the CLI, I had to create a certificate and a key. For this, I reused the test data in created in the `DidGenTestCase` and exported them to files via interactive Python console, which was too cumbersome IMHO.
  * What can I do with the resulting DID json file? Can I feed it to some other tool?

Details of DID, DID document and what they can be used for, are explained in W3C DID standard. Of course, without the new README, this is not obvious.

The last question also makes me think if the DID creation test pipeline could benefit from integration testing with another tool – not maintained by us – which reads a DID and does something with it.

Good point. DID document is required for Gaia-X and its infrastructure is not yet up and running. I will put this in backlog.

[anjastrunk]

@martinmo I added your changes and suggestions please re-review.

[mbuechse]

very minor points

[github-actions]

Package	Line Rate	Health
creator	92%	➖
tests	99%	✔
Summary	96% (210 / 218)	✔

Minimum allowed line rate is 90%

[martinmo]

Second round of review done – I think this is good to go!