ENH Cleanup multiview API and enable oblique multiview #1350

Job	Run time
Source distribution	1m 55s
Build wheels on manylinux - x86_64 with Python cp39	2m 0s
Build wheels on Arm M1 with Python cp39	1m 57s
Build wheels on manylinux - x86_64 with Python cp310	2m 1s
Build wheels on manylinux - x86_64 with Python cp311	2m 0s
Build wheels on Arm M1 with Python cp310	1m 50s
Build wheels on manylinux - x86_64 with Python cp312	2m 3s
Build wheels on Arm M1 with Python cp311	1m 55s
Build wheels on Arm M1 with Python cp312	1m 53s
Build wheels on macosx - x86_64 with Python cp39	3m 25s
Build wheels on macosx - x86_64 with Python cp310	2m 52s
Build wheels on macosx - x86_64 with Python cp311	2m 18s
Build wheels on macosx - x86_64 with Python cp312	2m 32s
Build wheels on win - AMD64 with Python cp39	5m 8s
Build wheels on win - AMD64 with Python cp310	6m 31s
Build wheels on win - AMD64 with Python cp311	5m 7s
Build wheels on win - AMD64 with Python cp312	5m 0s
Merge all wheels into one directory	7s
	50m 34s

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