Refactor quasiparticle regularization

[lkdvos]

This PR simplifies and reuses some code by using functions that already existed, and additionally refactors that to avoid using braiding tensors.
Overall this should be more friendly to multifusion things, and possibly slightly more efficient.

[codecov]

Codecov Report

❌ Patch coverage is 88.46154% with 6 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
src/states/quasiparticle_state.jl	66.66%	4 Missing ⚠️
...c/algorithms/excitation/quasiparticleexcitation.jl	33.33%	2 Missing ⚠️

Files with missing lines	Coverage Δ
src/algorithms/excitation/exci_transfer_system.jl	88.46% <100.00%> (+44.01%)	⬆️
src/algorithms/toolbox.jl	95.15% <100.00%> (ø)
src/environments/qp_envs.jl	93.70% <100.00%> (+0.08%)	⬆️
src/transfermatrix/transfermatrix.jl	80.00% <100.00%> (+0.51%)	⬆️
...c/algorithms/excitation/quasiparticleexcitation.jl	76.64% <33.33%> (ø)
src/states/quasiparticle_state.jl	86.25% <66.66%> (-1.25%)	⬇️

... and 2 files with indirect coverage changes

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[borisdevos]

Currently I'm erroring at regularize! when I want to probe multifusion excitations which aren't the identity, which is weird because I'm guessing exci.trivial should be false there? The error is at the removeunit(v, 3) call.

Edit: I tested this with a Z2 Ising model, and I also error here for Z2Irrep(1) charges. Which means on the one hand that it's generic, and on the other hand that it's a good thing I've added these tests to #297 😄

[borisdevos]

This seems to fix the issue locally. I'm also a fan of the name istopological.

[lkdvos]

Any chance you can migrate the charged quasiparticle tests here? It would be nice to make sure this is actually passing