Added network interfaces to helios and azur clusters.

data/grid5000/sites/sophia/clusters/azur/nodes/azur-1.json

data/grid5000/sites/sophia/clusters/azur/nodes/azur-10.json

data/grid5000/sites/sophia/clusters/azur/nodes/azur-11.json

data/grid5000/sites/sophia/clusters/azur/nodes/azur-12.json

data/grid5000/sites/sophia/clusters/azur/nodes/azur-13.json

data/grid5000/sites/sophia/clusters/azur/nodes/azur-14.json

data/grid5000/sites/sophia/clusters/azur/nodes/azur-15.json

data/grid5000/sites/sophia/clusters/azur/nodes/azur-16.json

data/grid5000/sites/sophia/clusters/azur/nodes/azur-17.json

data/grid5000/sites/sophia/clusters/azur/nodes/azur-18.json

data/grid5000/sites/sophia/clusters/azur/nodes/azur-19.json

data/grid5000/sites/sophia/clusters/azur/nodes/azur-2.json

data/grid5000/sites/sophia/clusters/azur/nodes/azur-20.json

data/grid5000/sites/sophia/clusters/azur/nodes/azur-21.json

data/grid5000/sites/sophia/clusters/azur/nodes/azur-22.json

data/grid5000/sites/sophia/clusters/azur/nodes/azur-23.json

data/grid5000/sites/sophia/clusters/azur/nodes/azur-24.json

data/grid5000/sites/sophia/clusters/azur/nodes/azur-25.json

data/grid5000/sites/sophia/clusters/azur/nodes/azur-26.json

data/grid5000/sites/sophia/clusters/azur/nodes/azur-27.json