xrt: Introduce xrt_system_compositor
This change introduces a xrt_system_compositor
, it is basically a analogous to XrSystemID
but instead of being a fully fledged xrt_system
this is only the compositor part of it.
This change introduces a xrt_system_compositor
, it is basically a analogous to XrSystemID
but instead of being a fully fledged xrt_system
this is only the compositor part of it.