WIP: CIP67 and CIP68 Support

[theeldermillenial]

This PR is a first pass implementation at handling classes for CIP67 and CIP68. These classes will streamline handling and parsing tokens utilizing these standards. This approach attempts to extend AssetName by providing additional validation to ensure CIP68 compliance for token names, as well as associated cbor classes for parsing associated metadata.

Feedback on implementation details and additional functionality is welcomed.

Todo:

• Unit Tests
• More rigorous validation of CIP68 fields (e.g. the uri fields)
• Documentation

[codecov-commenter]

Codecov Report

Attention: 25 lines in your changes are missing coverage. Please review.

Comparison is base (3d27786) 84.51% compared to head (2df945e) 84.11%.

Files	Patch %	Lines
pycardano/cip/cip68.py	76.27%	14 Missing ⚠️
pycardano/cip/cip67.py	45.00%	11 Missing ⚠️

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Additional details and impacted files

@@            Coverage Diff             @@
##             main     #297      +/-   ##
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- Coverage   84.51%   84.11%   -0.41%     
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  Files          27       29       +2     
  Lines        3093     3172      +79     
  Branches      758      768      +10     
==========================================
+ Hits         2614     2668      +54     
- Misses        358      383      +25     
  Partials      121      121              

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[nielstron]

This is great. I was actually thinking that PlutusData in pycardano could try to support TypedDict as type annotation for field.

Also I found that deserialization of CIP68 compliant datums fails - have not checked lately if this has been fixed but likely requires a similar fix as #293

[theeldermillenial]

This is great. I was actually thinking that PlutusData in pycardano could try to support TypedDict as type annotation for field.

So we just need some kind of extension of this?

pycardano/pycardano/serialization.py

Line 806 in 3d27786

class DictCBORSerializable(CBORSerializable):

Also I found that deserialization of CIP68 compliant datums fails - have not checked lately if this has been fixed but likely requires a similar fix as #293

Have any examples? I just did a query of all cip68 reference tokens and found that 99.99% of them are nfts. I'm trying to figure out a good set of test cases for it. I could use the example in the CIP68 docs, but those are extremely sparse. Ideally I could get a range of different examples.

[nielstron]

I would rather extend the support of type annotations for fields of PlutusData here:

pycardano/pycardano/plutus.py

Line 681 in 3d27786

elif (

Also for the CIP68 datum I meant the deserialization happening when submitting a transaction with a CIP68 Datum attached - you can try this yourself easily. But don't have any examples at hand right now except for https://preprod.cardanoscan.io/transaction/36f79154eff88d73c21caaf9c5e1bedfc1ff641e39f7f80381dbdba0c104bc50