Make fixes mostly to stabilize CTS. Tested on Windows with RTX 2080 Ti.
Use separate linked-list maps for devices and queues.
Process queues upfront in OBS_CreateDevice, and not lazily in
OBS_GetDeviceQueue.
Handle failed node allocation for OBS_CreateInstance, OBS_CreateDevice,
and OBS_CreateSwapchainKHR.
Handle VK_NULL_HANDLE for OBS_DestroySurfaceKHR and
OBS_DestroySwapchainKHR.
Add temporary code path CTS_WORKAROUND to deal with CTS sharing surfaces
between instances.
Fix return value for OBS_DestroyInstance.
Add missing _freea calls, required for _malloca.
Make sure the queue passed to OBS_QueuePresentKHR supports transfer to
safely call vkCmdCopyImage.
Update GetInstanceProcAddr/GetDeviceProcAddr to conform closer to spec.
Remove extra macros because I dislike indirection more than verbosity.
Reorganize data to avoid best practices layer warning. Sort of a false
positive in our case because we only have one buffer per pool now, but
implicit layers should be clean citizens.
Don't allow unsupported Vulkan formats to fall back to B8G8R8A8.
Probably better to fail completely than do an illegal copy.
Also remove bad conversion for VK_FORMAT_A2R10G10B10_UNORM_PACK32.
Red and blue channels were reversed, and there's no DXGI equivalent.
Addresses #2796. We can do more later if justified.
Make sure HWND tracking is cleaned up when Vulkan surfaces are
destroyed. Also use unbounded linked list to fix games that leak
surfaces on Alt+Tab like Doom.
Also replace CRITICAL_SECTION with SRWLOCK, both for claimed speed
benefit, and to remove initialization code.
