Fix order of _aligned_malloc arguments for MSVC.

[FarisElghlan]

For MSVC, the arguments of the function _aligned_malloc should be ordered as follows:

void * _aligned_malloc(
    size_t size,
    size_t alignment
);

See: https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/aligned-malloc?view=msvc-160

This is different than for std::aligned_alloc and boost::alignment::aligned_alloc.

This fixes the issue reported in #861