This app desperately needs vulkan support

[haasn]

Requiring an invisible window or relying on driver specifics to ensure our buffers are actually backed by VRAM are both unnecessarily crippling requirements. In addition to this, we're limited to supporting using additional VRAM from only a single GPU, even though my system has multiple PCIe slots and multiple GPUs installed. What a waste of transistors!

With the state-of-the-art, modern, safe and future-proof Vulkan graphics API, we can overcome all of these limitations at once.

Upon informal enquiry, I was told "patches welcome", so I decided to use my time-tested code production strategy of "open an issue and wait".