[sophia][pdus] declaration des pdus du site

Ajout de la description des PDUs de sophia.

data/grid5000/sites/sophia/pdus/dcadm-c007-rack-f-pdu-d1.json

+{
+  "ip": "172.17.143.151",
+  "mac": "00:20:85:D7:7F:BA",
+  "model": "EVMAF332X",
+  "type": "pdu",
+  "uid": "dcadm-c007-rack-f-pdu-d1",
+  "vendor": "EATON"
+}
\ No newline at end of file