added 1g solver and procedure pointer
added 1g solver and procedure pointer

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