Fixed OpenCG compatibility from 2D to 3D lattice reshaping
Fixed OpenCG compatibility from 2D to 3D lattice reshaping

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