WIP: add support for EGL_MESA_query_renderer
Firefox requested to have a way to query the device's vendor PCI ID and device PCI ID. A possible way to
do these queries is by implementing EGL_MESA_QUERY_RENDERER as first proposed here
References:
libglvnd ext addition (here)
A different extension EGL_EXT_device_query_pci to solve the same issue has also been proposed here