[spirv-reader] Support strided f16 matrices #4401

Job	Run time
Go Build and Test	38s
CMake-windows-latest-Debug-msvc	13m 23s
CMake-windows-latest-Release-msvc	16m 5s
CMake-ubuntu-latest-Debug-gcc	1h 6m 50s
CMake-ubuntu-latest-Release-gcc	1h 8m 5s
CMake-macos-latest-Debug-clang	18m 29s
CMake-macos-latest-Release-clang	24m 1s
CMake-macos-13-Debug-clang	1h 3m 50s
CMake-macos-13-Release-clang	58m 27s
	5h 29m 48s

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