Implement METRIC.NaNEuclidean #205

Job	Run time
linux-x86_64-cmake	10m 10s
linux-x86_64-AVX2-cmake	9m 57s
format	32s
linux-arm64-conda	11m 3s
linux-x86_64-AVX512-cmake	0s
linux-x86_64-GPU-packages-CUDA-12-1-1	0s
linux-x86_64-conda	13m 37s
linux-x86_64-GPU-w-RAFT-cmake	1h 41m 33s
linux-x86_64-GPU-RAFT-packages-CUDA11-8-0	0s
linux-x86_64-packages	0s
windows-x86_64-conda	35m 39s
windows-x86_64-packages	0s
linux-arm64-packages	0s
osx-arm64-packages	0s
linux-x86_64-GPU-RAFT-packages-CUDA12-1-1	0s
linux-x86_64-GPU-cmake	35m 31s
	3h 38m 2s

Provide feedback