feat!: Allow generic Nodes in HugrMut insert operations

[aborgna-q]

insert_hugr, insert_from_view, and insert_subgraph were written before we made Node a type generic, and incorrectly assumed the return type maps were always hugr::Nodes.

The methods were either unusable or incorrect when using generic HugrViews source/targets with non-base node types.

This PR fixes that, and additionally allows us us to have SiblingSubgraph::extract_subgraph work for generic HugrViews.

BREAKING CHANGE: Added Node type parameters to extraction operations in HugrMut.

[codecov]

Codecov Report

Attention: Patch coverage is 81.96721% with 11 lines in your changes missing coverage. Please review.

Please upload report for BASE (release-rs-v0.16.0@209b2ea). Learn more about missing BASE report.

Files with missing lines	Patch %	Lines
hugr-core/src/hugr/hugrmut.rs	83.05%	10 Missing ⚠️
hugr-core/src/builder/build_traits.rs	0.00%	1 Missing ⚠️

Additional details and impacted files

@@                  Coverage Diff                  @@
##             release-rs-v0.16.0    #2075   +/-   ##
=====================================================
  Coverage                      ?   82.90%           
=====================================================
  Files                         ?      217           
  Lines                         ?    41554           
  Branches                      ?    37732           
=====================================================
  Hits                          ?    34451           
  Misses                        ?     5299           
  Partials                      ?     1804           

Flag	Coverage Δ
python	85.40% <ø> (?)
rust	82.65% <81.96%> (?)

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[hugrbot]

This PR contains breaking changes to the public Rust API.

cargo-semver-checks summary

--- failure trait_method_requires_different_generic_type_params: trait method now requires a different number of generic type parameters ---

Description:
A trait method now requires a different number of generic type parameters than it used to. Calls or implementations of this trait method using the previous number of generic types will be broken.
      ref: https://doc.rust-lang.org/reference/items/generics.html
     impl: https://github.com/obi1kenobi/cargo-semver-checks/tree/v0.40.0/src/lints/trait_method_requires_different_generic_type_params.ron

Failed in:
Container::add_hugr_view (0 -> 1 generic types) in /home/runner/work/hugr/hugr/PR_BRANCH/hugr-core/src/builder/build_traits.rs:122
HugrMut::insert_from_view (0 -> 1 generic types) in /home/runner/work/hugr/hugr/PR_BRANCH/hugr-core/src/hugr/hugrmut.rs:241
HugrMut::insert_subgraph (0 -> 1 generic types) in /home/runner/work/hugr/hugr/PR_BRANCH/hugr-core/src/hugr/hugrmut.rs:264

[tatiana-s]

I am not too familiar with this part of the codebase but generally looks good to me 👍