Concept definition

template<typename T>
concept oscr::GpuNode = 
    avnd::texture_input_introspection<T>::size > 0
 || avnd::texture_output_introspection<T>::size > 0
 || avnd::buffer_input_introspection<T>::size > 0
 || avnd::buffer_output_introspection<T>::size > 0
    