GROUPR changes for DRAGON NJOY
Some changes to meshes 25, 26, and 27 to address resonance self-shielding issues,
Addition of meshes 35 and 36 (EDF/Framatome and Newcleo),
Addition of descriptive print statements, including one missed for mesh 34,
Increase size of ntmp to accomodate ECCO1962 mesh.