Move reference semantics MBQC ops to MBQC dialect

[paul0403]

Context:
When the MBQC reference semantics ops were first added, I added them to the overarching qref dialect.

This was not the best organization. See discussion in thread

In particular,

We don't have a single dialect for all the existing dialects either just because they share "value semantics". While MLIR has two distinct dialects for tensors (value-sem) and memrefs (memory-sem), the difference is that these dialects specifically focus on those (i.e. what can you do with tensors or memrefs). Domain specific dialects seem either work with both (e.g. linalg can operate on both tensors and memrefs) or chose to explicitly work with only one of those (e.g. stablehlo).

As a domain specific dialect, MBQC is now hosting both value and reference semantics ops.

Description of the Change:
Move reference semantics mbqc ops from qref dialect to mbqc dialect.

Benefits:
Better organization.

[github-actions]

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 96.95%. Comparing base (a06c8eb) to head (45d200a).
⚠️ Report is 9 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2829      +/-   ##
==========================================
- Coverage   96.95%   96.95%   -0.01%     
==========================================
  Files         169      169              
  Lines       18869    18875       +6     
  Branches     1797     1799       +2     
==========================================
+ Hits        18295    18300       +5     
  Misses        409      409              
- Partials      165      166       +1     

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[joeycarter]

Thanks @paul0403 💯

Just had a couple of suggestions to polish up the docs while we're here, otherwise looks good.