Supporting other boundary conditions.
Supporting other boundary conditions.

liangjg/openmc,paulromano/openmc,johnnyliu27/openmc,johnnyliu27/openmc,amandalund/openmc,smharper/openmc,mit-crpg/openmc,mit-crpg/openmc,walshjon/openmc,smharper/openmc,paulromano/openmc,wbinventor/openmc,walshjon/openmc,smharper/openmc,amandalund/openmc,liangjg/openmc,liangjg/openmc,liangjg/openmc,mit-crpg/openmc,walshjon/openmc,smharper/openmc,shikhar413/openmc,mit-crpg/openmc,johnnyliu27/openmc,wbinventor/openmc,wbinventor/openmc,amandalund/openmc,amandalund/openmc,paulromano/openmc,johnnyliu27/openmc,wbinventor/openmc,walshjon/openmc,shikhar413/openmc,paulromano/openmc,shikhar413/openmc,shikhar413/openmc