Institutional repository reorganization

[davidhassell]

• [x] Reorganize directories following scheme laid out on wordpress site and face-to-face notes https://docs.google.com/document/d/1sKpJjW4re1Sy-RVWne_B4JQRgl-5tAuXNOjEWhIrWas/edit

cmip6 / citations.xls
      responsible parties.xls
             machines.xls
             models / models_initialisation.json
                             model A / realms*.xls
                                              pdf / realms*.pdf
                             model B / realms*.xls
                                             pdf /  realms*.pdf
             simulations / model A / ensembles.xls
                                                     conformances / stage 1.xls
                                                                                 stage 2 / stage2*.xls
                                                     performances.xls
                                    model B / ensembles.xls
                                                     conformances / stage 1.xls
                                                                                 stage 2 / stage2*.xls
                                                     performances.xls