Adding KVTensorMetaData class #15379

Job	Run time
build-linux (x86, linux.12xlarge, shared, clang)	17m 31s
build-linux (x86, linux.12xlarge, static, clang)	17m 27s
build-linux (x86, linux.12xlarge, static, gcc)	19m 37s
build-linux (x86, linux.12xlarge, shared, gcc)	19m 44s
build-bazel (x86, linux.12xlarge, gcc)	10m 0s
build-windows (windows-2022, shared)	12m 37s
build-bazel (x86, linux.12xlarge, clang)	9m 18s
build-macos (macos-13, shared)	13m 27s
build-windows (windows-2022, static)	12m 34s
build-macos (macos-13, static)	16m 3s
	2h 28m 18s

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