scripts: Add the cid2civ script

[poncovka]

Add a scripts that allows to download metadata about cloud images from Cloud Image Directory and prepare them for testing via Cloud Image Validation.

• Print the supported arguments of the script:
  poetry run scripts/cid2civ --help

• Download data about Azure images:
  poetry run scripts/cid2civ download azure > cid.json

• Print a summary about the downloaded data:
  poetry run scripts/cid2civ analyze cid.json

• Generate resources for the image validation:
  poetry run scripts/cid2civ convert cid.json > civ.json

TODO

• Write tests for the script.
• Document the script.
• Install all dependencies.

[miyunari]

Nice - thank you for building the bridge between QE testing and the CID :) I have only one question regarding the script-thing itself :D

[miyunari]

Why do we need this? :) Can't we not add .py to the file instead?

[miyunari]

Does it make sense to register cid2civ here, the same way we did it with the transformer (and the old cli in the past)? :)

[poncovka]

Update:

• Added tests.
• Extended documentation.
• Poetry generates some crazy changes in the poetry.lock file.

About Nina's suggestions, my idea was to keep the script (and any future scripts) separate from your source files and keep them language-agnostic, so you don't have to change the documentation and tests if necessary. Would it be fine to merge these changes as they are for now? You can always change it.

[miyunari]

For me that sounds good, @FKolwa what do you think? :)

[F-X64]

@miyunari Yes, I'm very fine with this! Feel free to merge ;)