Make ARM64EC build available with NEON intrinsics

[vinod-sv]

1. A batch file to make ARM64EC project
2. Make use of NEON intrinsics for ARM64EC ABI.
3. MSVC compiler causes internal compiler error in AABox4VsBox functions. It gets mitigated only if 'g' optimisation is disabled. A separate complaint is raised for Microsoft team to look into this compiler error. Until Microsoft resolves this compiler error, it is handled.

[jrouwe]

• The internal compiler error is due to link time code generation just like the other ARM versions. The #pragma is not needed.
• I didn't find any documentation online about _ARM64EC_ and it also wasn't handled in the #if below it, so I removed it.
• Your change was for an older version of Jolt, JPH_CPU_ADDRESS_BITS has been renamed to JPH_CPU_ARCH_BITS

[jrouwe]

A separate complaint is raised for Microsoft team to look into this compiler error.

Can you link the issue here? (I couldn't find it and I don't remember if I ever filed a ticket for this)

[vinod-sv]

A separate complaint is raised for Microsoft team to look into this compiler error.

Can you link the issue here? (I couldn't find it and I don't remember if I ever filed a ticket for this)

https://developercommunity.visualstudio.com/t/ARM64EC-NEON-Internal-Compiler-Error/10913099