feat!: Generalise array op builers to arbitrary array kinds

[mark-koch]

• Renamed ArrayOpBuilder trait to GenericOpBuilder whose methods are generic over the array implementation
• Defined new ArrayOpBuilder and VArrayOpBuilder traits that are implemented in terms of the generic version. I moved those into the array and value_array modules respectively, so they don't come into scope at the same time
• Moved all_array_ops ops function out of the tests module so we can reuse it across other tests (in particular getting rid of the code duplication in hugr-llvm::extension::collections::array::test

BREAKING CHANGE: ArrayOpBuilder was moved from hugr_core::std_extensions::collections::array::op_builder to hugr_core::std_extensions::collections::array

[codecov]

Codecov Report

Attention: Patch coverage is 72.19731% with 62 lines in your changes missing coverage. Please review.

Please upload report for BASE (feat/arrays@ae02e43). Learn more about missing BASE report.

Files with missing lines	Patch %	Lines
...core/src/std_extensions/collections/value_array.rs	0.00%	60 Missing ⚠️
hugr-core/src/std_extensions/collections/array.rs	97.33%	0 Missing and 2 partials ⚠️

Additional details and impacted files

@@              Coverage Diff               @@
##             feat/arrays    #2119   +/-   ##
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  Coverage               ?   83.32%           
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  Files                  ?      226           
  Lines                  ?    42847           
  Branches               ?    38900           
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  Hits                   ?    35703           
  Misses                 ?     5289           
  Partials               ?     1855           

Flag	Coverage Δ
python	85.68% <ø> (?)
rust	83.08% <72.19%> (?)

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[hugrbot]

This PR contains breaking changes to the public Rust API.

cargo-semver-checks summary

--- failure trait_added_supertrait: non-sealed trait added new supertraits ---

Description:
A non-sealed trait added one or more supertraits, which breaks downstream implementations of the trait
      ref: https://doc.rust-lang.org/cargo/reference/semver.html#generic-bounds-tighten
     impl: https://github.com/obi1kenobi/cargo-semver-checks/tree/v0.41.0/src/lints/trait_added_supertrait.ron

Failed in:
trait hugr_core::std_extensions::collections::array::ArrayOpBuilder gained GenericArrayOpBuilder in file /home/runner/work/hugr/hugr/PR_BRANCH/hugr-core/src/std_extensions/collections/array.rs:176

--- failure trait_allows_fewer_generic_type_params: trait now allows fewer generic type parameters ---

Description:
A trait now allows fewer generic type parameters than it used to. Uses of this trait that supplied all previously-supported generic types will be broken.
      ref: https://doc.rust-lang.org/cargo/reference/semver.html#trait-new-parameter-no-default
     impl: https://github.com/obi1kenobi/cargo-semver-checks/tree/v0.41.0/src/lints/trait_allows_fewer_generic_type_params.ron

Failed in:
trait ArrayOpBuilder allows 1 -> 0 generic types in /home/runner/work/hugr/hugr/PR_BRANCH/hugr-core/src/std_extensions/collections/array.rs:176

--- failure trait_missing: pub trait removed or renamed ---

Description:
A publicly-visible trait cannot be imported by its prior path. A `pub use` may have been removed, or the trait itself may have been renamed or removed entirely.
      ref: https://doc.rust-lang.org/cargo/reference/semver.html#item-remove
     impl: https://github.com/obi1kenobi/cargo-semver-checks/tree/v0.41.0/src/lints/trait_missing.ron

Failed in:
trait hugr_core::std_extensions::collections::array::op_builder::ArrayOpBuilder, previously in file /home/runner/work/hugr/hugr/BASELINE_BRANCH/hugr-core/src/std_extensions/collections/array/op_builder.rs:15

--- failure trait_removed_supertrait: supertrait removed or renamed ---

Description:
A supertrait was removed from a trait. Users of the trait can no longer assume it can also be used like its supertrait.
      ref: https://doc.rust-lang.org/reference/items/traits.html#supertraits
     impl: https://github.com/obi1kenobi/cargo-semver-checks/tree/v0.41.0/src/lints/trait_removed_supertrait.ron

Failed in:
supertrait hugr_core::builder::Dataflow of trait ArrayOpBuilder in file /home/runner/work/hugr/hugr/PR_BRANCH/hugr-core/src/std_extensions/collections/array.rs:176

[aborgna-q]

LGTM. Nice solutions to the duplicated impl problem :)