VulkanMemoryAllocator

This is VulkanMemoryAllocator, packaged for the Zig build system.

how to use

1. Add VulkanMemoryAllocator to the dependency list in build.zig.zon:

zig fetch --save git+https://github.com/johan0A/VulkanMemoryAllocator#v3.2.1

1. Config build.zig:

...
const vma_dep = b.dependency("VulkanMemoryAllocator", .{
    .target = target,
    .optimize = optimize,
});
your_compilation.linkLibrary("vma", vma_dep.artifact("VulkanMemoryAllocator"));
...