Reimplement SurfacePlane translational BCs
Reimplement SurfacePlane translational BCs

walshjon/openmc,paulromano/openmc,mit-crpg/openmc,walshjon/openmc,shikhar413/openmc,walshjon/openmc,mit-crpg/openmc,amandalund/openmc,paulromano/openmc,shikhar413/openmc,mit-crpg/openmc,walshjon/openmc,paulromano/openmc,amandalund/openmc,amandalund/openmc,shikhar413/openmc,amandalund/openmc,shikhar413/openmc,paulromano/openmc,mit-crpg/openmc