Qt Toolkit Lands IO_uring Abstraction

The newest feature to land in the cross-platform Qt toolkit is QIORing as an abstraction for Linux's IO_uring interface. This QIORing may also end up supporting Microsoft's Windows IORing implementation as well.

QIORing is now merged to the Qt toolkit for abstracting IO_uring Linux usage from this Qt interface:
"Introduce QIORing to abstract io_uring on Linux

Somewhat low level code, intended as a low level abstraction.

The QIORing interface would also be used for Windows' IORing, developed at the same time as the io_uring version. There is some shared code and helper functions, but a lot of the code in some way touch the platform specifics, so without yet more abstractions quite some code is left as unique."

The code landed via this merge . The code had been worked on over the past several months by MÃ¥rten Nordheim.