[rennes] Add PDUs resources

Rakefile

data/grid5000/sites/rennes/pdus/paradent-pdu-1.json

data/grid5000/sites/rennes/pdus/paradent-pdu-2.json

data/grid5000/sites/rennes/pdus/paradent-pdu-3.json

data/grid5000/sites/rennes/pdus/paradent-pdu-4.json

data/grid5000/sites/rennes/pdus/paradent-pdu-5.json

data/grid5000/sites/rennes/pdus/paradent-pdu-6.json

data/grid5000/sites/rennes/pdus/paradent-pdu-7.json

data/grid5000/sites/rennes/pdus/paradent-pdu-8.json

data/grid5000/sites/rennes/pdus/parapide-pdu-1.json

data/grid5000/sites/rennes/pdus/parapide-pdu-2.json

data/grid5000/sites/rennes/pdus/parapide-pdu-3.json

data/grid5000/sites/rennes/pdus/parapide-pdu-4.json

data/grid5000/sites/rennes/pdus/parapluie-pdu-1.json

data/grid5000/sites/rennes/pdus/parapluie-pdu-2.json

data/grid5000/sites/rennes/pdus/parapluie-pdu-3.json

data/grid5000/sites/rennes/pdus/parapluie-pdu-4.json

data/grid5000/sites/rennes/pdus/parapluie-pdu-5.json

data/grid5000/sites/rennes/pdus/parapluie-pdu-6.json

data/grid5000/sites/rennes/rennes.json