feat(#399): add ToJSON GYTxOutRefCbor instance

[jaredponn]

Summary

This PR:

• adds the ToJSON GYTxOutRefCbor instance for issue Missing ToJSON GYTxOutRefCbor instance #399
• documents some of the issues with this instance (it's not an isomorphism, but in practise this hopefully isn't an issue)
• property based testing of roundtrip tests of the form GYTxOutRefCbor --> JSON --> GYTxOutRefCbor === id

Type of Change

Please mark the relevant option(s) for your pull request:

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Code refactoring (improving code quality without changing its behavior)
• Documentation update (adding or updating documentation related to the project)

Checklist

Please ensure that your pull request meets the following criteria:

• I have read the Contributing Guide
• My code follows the project's coding style and best practices
• My code is appropriately commented and includes relevant documentation
• I have added tests to cover my changes
• All new and existing tests pass
• I have updated the documentation, if necessary

Testing

Please describe the tests you have added or modified, and provide any additional context or instructions needed to run the tests.

• Property based tests which verify that GYTxOutRefCbor --> JSON --> GYTxOutRefCbor is the same as id is over here https://github.com/geniusyield/atlas/blob/85318864b9e9ec3ceaaea704eaee469a17da7f30/tests/GeniusYield/Test/GYTxOutRefCbor.hs

It was included in the usual test suite atlas-tests, so no special instructions are needed to run it.

Additional Information

Running my tests locally on my computer succeeds with:

# the test runner was modified to only run my tests.
$ cabal run test:atlas-tests
atlas
  GYTxOutRefCbor
    Roundtrip GYTxOutRefCbor --> JSON --> GYTxOutRefCbor === id: OK
      +++ OK, passed 100 tests.

All 1 tests passed (0.01s)

Would be happy to provide any other information as needed :)

[sourabhxyz]

Good job, thank you!

[jaredponn]

Amazing! Thank you @sourabhxyz for all the help and discussions with getting this merged, I really appreciate it!