arena: support permuted Hadamard add/subt/mult on Tensor<ArenaTensor>… #1510

Job	Run time
macos-latest: clang++ Debug Pthreads	16m 28s
ubuntu-24.04: /usr/bin/g++-14 Debug PaRSEC	23m 25s
ubuntu-24.04: /usr/bin/g++-14 Release PaRSEC	26m 34s
ubuntu-24.04: /usr/bin/g++-14 Debug Pthreads	21m 43s
macos-latest: clang++ Release Pthreads	23m 44s
ubuntu-24.04: /usr/bin/g++-14 Release Pthreads	22m 55s
macos-latest: clang++ Debug PaRSEC	14m 44s
macos-latest: clang++ Release PaRSEC	20m 48s
	2h 50m 21s

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