[MSVC, ARM64] Add _Copy* and _Count* intrinsics (#66554)

Implement the _Count* and _Copy* Windows ARM intrinsics:

```
double _CopyDoubleFromInt64(__int64)
float _CopyFloatFromInt32(__int32)
__int32 _CopyInt32FromFloat(float)
__int64 _CopyInt64FromDouble(double)
unsigned int _CountLeadingOnes(unsigned long)
unsigned int _CountLeadingOnes64(unsigned __int64)
unsigned int _CountLeadingSigns(long)
unsigned int _CountLeadingSigns64(__int64)
unsigned int _CountLeadingZeros(unsigned long)
unsigned int _CountLeadingZeros64(unsigned __int64)
unsigned int _CountOneBits(unsigned long)
unsigned int _CountOneBits64(unsigned __int64)
```

Full list of intrinsics here:
[https://learn.microsoft.com/en-us/cpp/intrinsics/arm64-intrinsics](https://learn.microsoft.com/en-us/cpp/intrinsics/arm64-intrinsics)

Bug: [65405](https://github.com/llvm/llvm-project/issues/65405)