[lyon] Add servers information

data/grid5000/sites/lyon/servers/api-proxy.json

data/grid5000/sites/lyon/servers/api-server-devel.json

data/grid5000/sites/lyon/servers/api-server-v3.json

data/grid5000/sites/lyon/servers/castor.json

data/grid5000/sites/lyon/servers/conman.json

data/grid5000/sites/lyon/servers/cyrrus.json

data/grid5000/sites/lyon/servers/dhcp.json

data/grid5000/sites/lyon/servers/dns.json

data/grid5000/sites/lyon/servers/flyon.json

data/grid5000/sites/lyon/servers/ganglia.json

data/grid5000/sites/lyon/servers/kadeploy-devel.json

data/grid5000/sites/lyon/servers/kadeploy.json

data/grid5000/sites/lyon/servers/kavlan-1.json

data/grid5000/sites/lyon/servers/kavlan-2.json

data/grid5000/sites/lyon/servers/kavlan-3.json

data/grid5000/sites/lyon/servers/kavlan-691.json

data/grid5000/sites/lyon/servers/kavlan.json

data/grid5000/sites/lyon/servers/kwapi.json

data/grid5000/sites/lyon/servers/ldap.json

data/grid5000/sites/lyon/servers/mail.json