[mono][jit] arm64 neon opcodes (#81026)
* [mono] ARM64 NEON opcode encodings, part 1.
* [mono] ARM64 NEON binary encodings, part 2.
* [mono] ARM64 NEON binary encodings, part 3.
* [mono] ARM64 NEON binary encodings, part 5.
* [mono] ARM64 NEON binary encodings, part 6.
* [mono] ARM64 NEON binary encodings, part 7.
* [mono] ARM64 NEON binary encodings, part 8.
* [mono] ARM64 NEON binary encodings, part 9.
* [mono] ARM64 NEON binary encodings, part 10.
* [mono] ARM64 NEON binary encodings, part 11.
* [mono] ARM64 NEON binary encodings, part 12.
* [mono] ARM64 NEON binary encodings, part 13.
* [mono] ARM64 NEON binary encodings, part 14.
* [mono] ARM64 NEON binary encodings, part 16.
* [mono] ARM64 NEON binary encodings, part 17.
* [mono][jit] ARM64/NEON opcode binary encodings, fixes.