* This API is now intended to be forward and backward compatible as much
as possible. Meaning applications should be able to run without
changing on many RenderDoc versions after the one they are built
against without breaking.
* All function pointers are fetched at once in one versioned GetAPI()
function, to save on constant GetProcAddress/dlsym'ing.
* Otherwise, it's largely similar to the previous API.
baldurk