Update WebAssembly tests from spec repos:

- Move simd feature to "standard" from "mature".
- Handle parsing both a memory reference and a lane index for load/store lane instructions.

Fix incorrect use of __cxa_demangle by passing in a stack-allocated b…

…uffer.

If the buffer is not large enough, it will call realloc on it, which will fail.
Thanks to Harrm for pointing out the bug.

separate license files

Fix wavm run without an explicit ABI specified producing an error if …

…the module doesn't have an emscripten_metadata section.

Use VirtualAlloc2 on newer versions of Windows in Platform::allocateA…

…lignedVirtualPages

Fix endless loop in full IndexMap

When an IndexMap becomes full, it goes into an endless loop on add() method call instead of returning failIndex.

Fix CMake error on AArch64.

Update memory64 tests from proposal repo:

- Remove workaround for i32 segment offsets into 64-bit memories.

Remove duplicated code.

Fix compile error on LLVM version < 11