Draft: Support for describing several nodes connected to the same PDU/Wattmetre + chuc_mapping

Ne pas merger tant que le support côté kwollect_wattmetre n'est pas prêt

data/grid5000/sites/lille/clusters/chuc/nodes/chuc-1.json

@@ -298,6 +298,62 @@
     "pstate_governor": "performance",
     "turboboost_enabled": true
   },
+  "pdu": [
+    {
+      "port": 28,
+      "uid": "pdu-c6-1"
+    },
+    {
+      "port": 35,
+      "uid": "pdu-c6-1"
+    },
+    {
+      "port": 42,
+      "uid": "pdu-c6-1"
+    },
+    {
+      "port": 28,
+      "uid": "pdu-c6-2"
+    },
+    {
+      "port": 35,
+      "uid": "pdu-c6-2"
+    },
+    {
+      "port": 42,
+      "uid": "pdu-c6-2"
+    },
+    {
+      "kind": "wattmetre-only",
+      "port": 18,
+      "uid": "wattmetrev3-1"
+    },
+    {
+      "kind": "wattmetre-only",
+      "port": 19,
+      "uid": "wattmetrev3-1"
+    },
+    {
+      "kind": "wattmetre-only",
+      "port": 20,
+      "uid": "wattmetrev3-1"
+    },
+    {
+      "kind": "wattmetre-only",
+      "port": 21,
+      "uid": "wattmetrev3-1"
+    },
+    {
+      "kind": "wattmetre-only",
+      "port": 22,
+      "uid": "wattmetrev3-1"
+    },
+    {
+      "kind": "wattmetre-only",
+      "port": 23,
+      "uid": "wattmetrev3-1"
+    }
+  ],
   "performance": {
     "core_flops": 41600000000,
     "node_flops": 1331200000000