Dislocation simplification & generalisation #65

Job	Run time
Build wheel for cp38-manylinux x86_64	1m 23s
Build wheel for cp39-manylinux x86_64	1m 37s
Build wheel for cp310-manylinux x86_64	1m 46s
Build wheel for cp311-manylinux x86_64	1m 43s
Build wheel for cp38-macosx x86_64	1m 34s
Build wheel for cp39-macosx x86_64	2m 56s
Build wheel for cp310-macosx x86_64	3m 3s
Build wheel for cp311-macosx x86_64	1m 24s
Build wheel for cp38-win AMD64	5m 48s
Build wheel for cp39-win AMD64	4m 14s
Build wheel for cp310-win AMD64	3m 58s
Build wheel for cp311-win AMD64	3m 57s
	33m 23s

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