Unsigned and Signed

[ktbarrett]

Closes #191.

These are useful for implementing a bunch of features currently found in cocotb's LogicArray (e.g. from_unsigned, to_unsigned) that we for binding coconext's DynLogicArray to Python in a way it can sit in place of cocotb's using the patcher.

This just uses uint64_t and int64_t. We will adapt UInt, and SInt from #278 once it's done.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 91.72%. Comparing base (3cd984a) to head (a5b17ca).
⚠️ Report is 1 commits behind head on dev.

Additional details and impacted files

@@           Coverage Diff           @@
##              dev     #271   +/-   ##
=======================================
  Coverage   91.72%   91.72%           
=======================================
  Files          23       23           
  Lines        1317     1317           
  Branches      330      330           
=======================================
  Hits         1208     1208           
  Misses         47       47           
  Partials       62       62           

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[ktbarrett]

The shape looks good.

[ktbarrett]

Welp, I guess we should move BitArray over to Bits as well now.

[ZiaCheemaGit]

Wrap BitArray around Bits? A packed Bitarray rework was mentioned in the unsigned signed docs. That is a similar thing?

[ktbarrett]

Yeah it's similar. Right now the implicit upcast is kind of an expensive operation. If everything was just Bits under the hood, we can just copy/move the Bits object around.