[mono] Pass Vector64, Vector128, and Vector256 in SIMD registers whenever possible #60068
Description
In particular this should work for FFI calls, so we should respect the target platform's common calling convention(s).
An similar example is 128-bit vectors for amd64.
Handles input arguments:
- LLVM
- Arm64
- Amd64
- mini
- Arm64
- Amd64
- interpreter
Handles return argument:
- LLVM
- Arm64
- Amd64
- mini
- Arm64
- Amd64
- interpreter