Critical Issues in underlying libraries

[bhatt-deep]

Issue: Long term impact -- increasingly difficult to maintain fork. This ticket is to future proof the current code to allow for future updates.

Coding and decoding of CBOR is inconsistent. Elder has provided a fix (below) which is a change in the CBOR library. It is a bigger and more pervasive problem. This needs to get resolved.

AC:
tbd

CONTEXT:
There are also some structural things that need work. The only reason why this library works is because I have fixed a couple of critical issues in the underlying libraries.

You can see the discussion in the following Github issues/PRs
Python-Cardano/pycardano#331
agronholm/cbor2#225

The current library works by pulling in my private fixes for these issues:
https://github.com/theeldermillenial/pycardano/tree/bugfix/datum