Add dedicated cached treebraider for AdjointTensorMap

[leburgel]

One option for a proper fix for #516, adding a dedicated cached conj_treebraider to handle permutations and transposes of AdjointTensorMaps with a plain TensorMap parent using the same infrastructure as the pure TensorMap path.

Some timings based on the reproducer of #516:

permute! — adjoint source vs plain TensorMap:

sector type	before	after	plain	ratio before	ratio after	speedup
fℤ₂	0.0730 ms	0.0790 ms	0.0620 ms	1.32×	1.27×	0.92×
fℤ₂ ⊠ U(1)	0.1295 ms	0.0367 ms	0.0345 ms	3.78×	1.06×	3.53×
U(1)	0.1012 ms	0.0302 ms	0.0278 ms	3.64×	1.09×	3.35×
SU(2)	2.5470 ms	0.3867 ms	0.3621 ms	7.26×	1.07×	6.59×
fℤ₂ ⊠ U(1) ⊠ SU(3)	3.9624 ms	0.0499 ms	0.0500 ms	78.78×	1.00×	79.4×

Allocations for the adjoint path drop to exactly the plain path's: 794→310, 662→310, 26 883→2840, 42 653→645.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.

Files with missing lines	Coverage Δ
src/spaces/homspace.jl	91.83% <100.00%> (+0.46%)	⬆️
src/tensors/indexmanipulations.jl	88.44% <100.00%> (+0.09%)	⬆️
src/tensors/treetransformers.jl	82.40% <100.00%> (-0.12%)	⬇️

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