Not compiling when VMA_EXTERNAL_MEMORY_WIN32 disabled.

[sagaceilo]

VulkanMemoryAllocator/include/vk_mem_alloc.h

Line 10597 in de8e657

m_Handle(VMA_NULL) {}

Hey,. this line is not compiling, when define switch is not specified.
In one scenario VmaWin32Handle is a class with explicite handle construcor, but in other it has no public constructor at all.

Solution : remove VMA_NULL and leave only m_Handle() or remove line completly as it will fallback to default constructor in both cases.

Thanks :)

[GamesTrap]

Fixed by

• Fix for ABI interop (without VK_KHR_external_memory_win32) #447

Waiting for merge.