Add AVX-512 implementation for the distance and scalar quantizer functions. #1255

Job	Run time
Linux arm64 packages	0s
Format	56s
Linux x86_64 (cmake)	14m 0s
Linux x86_64 GPU packages (CUDA 11.4.4)	0s
Linux x86_64 GPU packages (CUDA 12.1.1)	0s
Linux x86_64 GPU w/ RAFT packages (CUDA 11.8.0)	0s
Linux x86_64 packages	0s
Linux x86_64 GPU w/ RAFT packages (CUDA 12.1.1)	0s
OSX arm64 packages	0s
Windows x86_64 packages	0s
Linux arm64 SVE (cmake)	22m 5s
Linux x86_64 AVX512 (cmake)	20m 26s
Linux arm64 (conda)	2m 40s
Linux x86_64 AVX2 (cmake)	13m 55s
Linux x86_64 (conda)	13m 50s
Linux x86_64 GPU (cmake)	36m 2s
Linux x86_64 GPU w/ RAFT (cmake)	1h 34m 2s
Linux x86_64 GPU w/ ROCm (cmake)	29m 3s
Windows x86_64 (conda)	22m 14s
	4h 29m 13s

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