Updated statepoint.py for the k-fission score.
Updated statepoint.py for the k-fission score.

walshjon/openmc,smharper/openmc,johnnyliu27/openmc,keadyk/openmc_mg_prepush,liangjg/openmc,walshjon/openmc,lilulu/openmc,shenqicang/openmc,wbinventor/openmc,walshjon/openmc,johnnyliu27/openmc,paulromano/openmc,samuelshaner/openmc,shikhar413/openmc,walshjon/openmc,wbinventor/openmc,mit-crpg/openmc,shikhar413/openmc,smharper/openmc,wbinventor/openmc,amandalund/openmc,samuelshaner/openmc,liangjg/openmc,wbinventor/openmc,kellyrowland/openmc,samuelshaner/openmc,nhorelik/openmc,liangjg/openmc,paulromano/openmc,bhermanmit/cdash,samuelshaner/openmc,sxds/opemmc,keadyk/openmc_mg_prepush,paulromano/openmc,mit-crpg/openmc,amandalund/openmc,mit-crpg/openmc,amandalund/openmc,paulromano/openmc,shikhar413/openmc,lilulu/openmc,liangjg/openmc,smharper/openmc,bhermanmit/openmc,mit-crpg/openmc,lilulu/openmc,smharper/openmc,amandalund/openmc,bhermanmit/openmc,johnnyliu27/openmc,nhorelik/openmc,shikhar413/openmc,kellyrowland/openmc,mjlong/openmc,keadyk/openmc_mg_prepush,shenqicang/openmc,johnnyliu27/openmc,sxds/opemmc,mjlong/openmc