Dev/add dataset validation, including those for encodings

[aucahuasi]

This PR validates the edge encodings format, checking that the attribute for the complex encoding must exists as part of the edge schema.

[lmeyerov]

awesome --

• CI seems to fail?
• Are there tests we can port in?
• FEP would need to be able to call w/out passing in column names, can we have an entrypoint that still supports that?

[aucahuasi]

• CI seems to fail?

I've fixed most of the errors; however, it seems there are some that are unrelated to the changes in this PR.

• Are there tests we can port in?

Good catch, I ported the tests from FEP and added a couple (test_validate_encodings_with_attributes_bad and test_validate_encodings_with_attributes_good)

• FEP would need to be able to call w/out passing in column names, can we have an entrypoint that still supports that?

Good point, I've converted the function signatures to support an empty list of attributes, and the validation only applies when the attribute list is non-empty.

[lmeyerov]

@aucahuasi on that note... CHANGELOG :)

[aucahuasi]

@aucahuasi on that note... CHANGELOG :)

I've updated the changelog, thanks!

[lmeyerov]

https://github.com/graphistry/pygraphistry/pull/548 is landing, may help w/ CI fails

[aucahuasi]

#548 is landing, may help w/ CI fails

Awesome, I've just update this PR with those changes.

[lmeyerov]

LGTM!

Want to try going through the release flow in the develop.md?

[aucahuasi]

Want to try going through the release flow in the develop.md?

I'll check the release flow, I'll comment here in case I have questions, thanks for the review!