Removed NotImplementedError from property setters for consistent scattering matrix MGXS
Removed NotImplementedError from property setters for consistent scattering matrix MGXS

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