Choose command queue associated to swap chain in DirectX 12 hook - #209

Create a builder-like data structure that has to have a IDXGISwapChain
set first, and a ID3D12CommandQueue set later, provided it is associated
with the previously-set swap chain. The heuristic used is to check
the first 512 pointers in the memory pointed to by the swap chain,
dereference each of them, and see if any of them matches the command queue
that gets passed in. In practice, the command queue is among the first
few pointers. A bit of extra care is given in checking for memory
readability with VirtualQuery before dereferencing. There is some
overhead but it is probably negligible, and only happens the first time
the methods are hooked, so it's way less than a frame in total.

Some concern might be raised by the fact that now we need to lock a
mutex twice per frame, but practically that will happen almost always
on the same thread and parking_lot has good performance for that case.
Besides, we already do that successfully with the Pipeline.