Bespoke vec methods #4049

Job	Run time
check-paths	3s
ubuntu-22.04-clang-11 Release Python 3	24m 30s
macos-14-xcode-15.4 Release Python 3	11m 54s
ubuntu-22.04-gcc-9 Release Python 3	16m 49s
macos-13-xcode-14.2 Release Python 3	23m 12s
windows-2022-msbuild Release Python 3	41m 50s
	1h 58m 18s

Provide feedback