Detect ARM CPU features for host target and in runtime (Backport to release/18.x) #8343
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Adds feature detection for ARM CPUs to the runtime library and to the host target feature computation. Supports Windows, macOS, Linux, iOS, and Android.
Also fix bug in Type::max() and Type::min() for float16.
Fixes #4727
Fixes #6106
Fixes #7901
Fixes #7979
Fixes #8340