ggml: add `conv3d` op (#15182) #732

Job	Run time
macOS-x64	1m 54s
ubuntu-22-cpu (x64, ubuntu-22.04)	4m 4s
macOS-arm64	2m 17s
windows-cpu (x64)	3m 44s
windows (vulkan, x64, -DGGML_VULKAN=ON, ggml-vulkan)	3m 52s
windows (opencl-adreno, arm64, -G "Ninja Multi-Config" -D CMAKE_TOOLCHAIN_FILE=cmake/arm64-window...	2m 18s
windows-cpu (arm64)	2m 32s
windows-cuda (12.4)	46m 7s
ubuntu-22-vulkan	7m 22s
windows-sycl	11m 22s
ios-xcode-build	17m 45s
windows-hip (radeon, gfx1100;gfx1101;gfx1102;gfx1030;gfx1031;gfx1032)	46m 46s
release	1m 47s
	2h 31m 50s

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