added TallyNode type to global variables
added TallyNode type to global variables

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