added function to handle dicts of values
added function to handle dicts of values

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