Update source file format with surf_id
Update source file format with surf_id

shikhar413/openmc,amandalund/openmc,amandalund/openmc,walshjon/openmc,walshjon/openmc,walshjon/openmc,shikhar413/openmc,shikhar413/openmc,walshjon/openmc,amandalund/openmc,shikhar413/openmc,amandalund/openmc