Add support for properly optimized Windows ARM64 builds with LLVM and MSVC (llama...

Add support for properly optimized Windows ARM64 builds with LLVM and MSVC (llama/7191)

* logging: add proper checks for clang to avoid errors and warnings with VA_ARGS

* build: add CMake Presets and toolchian files for Windows ARM64

* matmul-int8: enable matmul-int8 with MSVC and fix Clang warnings

* ci: add support for optimized Windows ARM64 builds with MSVC and LLVM

* matmul-int8: fixed typos in q8_0_q8_0 matmuls

Co-authored-by: Georgi Gerganov <redacted>
* matmul-int8: remove unnecessary casts in q8_0_q8_0

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Co-authored-by: Georgi Gerganov <redacted>