Generate ref api with 'exotic' field (true pyxis, false for others)

data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-1.json

@@ -17,6 +17,7 @@
     "name": "PowerEdge C6420",
     "serial": "17TRSM2"
   },
+  "exotic": false,
   "kavlan": {
     "eth0": {
       "kavlan-1": "192.168.193.1",

data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-10.json

@@ -17,6 +17,7 @@
     "name": "PowerEdge C6420",
     "serial": "79RRSM2"
   },
+  "exotic": false,
   "kavlan": {
     "eth0": {
       "kavlan-1": "192.168.193.10",

data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-11.json

@@ -17,6 +17,7 @@
     "name": "PowerEdge C6420",
     "serial": "79SRSM2"
   },
+  "exotic": false,
   "kavlan": {
     "eth0": {
       "kavlan-1": "192.168.193.11",

data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-12.json

@@ -17,6 +17,7 @@
     "name": "PowerEdge C6420",
     "serial": "79SNSM2"
   },
+  "exotic": false,
   "kavlan": {
     "eth0": {
       "kavlan-1": "192.168.193.12",

data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-13.json

@@ -17,6 +17,7 @@
     "name": "PowerEdge C6420",
     "serial": "16XRSM2"
   },
+  "exotic": false,
   "kavlan": {
     "eth0": {
       "kavlan-1": "192.168.193.13",

data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-14.json

@@ -17,6 +17,7 @@
     "name": "PowerEdge C6420",
     "serial": "16YPSM2"
   },
+  "exotic": false,
   "kavlan": {
     "eth0": {
       "kavlan-1": "192.168.193.14",

data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-15.json

@@ -17,6 +17,7 @@
     "name": "PowerEdge C6420",
     "serial": "16YRSM2"
   },
+  "exotic": false,
   "kavlan": {
     "eth0": {
       "kavlan-1": "192.168.193.15",

data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-16.json

@@ -17,6 +17,7 @@
     "name": "PowerEdge C6420",
     "serial": "16ZHSM2"
   },
+  "exotic": false,
   "kavlan": {
     "eth0": {
       "kavlan-1": "192.168.193.16",

data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-17.json

@@ -17,6 +17,7 @@
     "name": "PowerEdge C6420",
     "serial": "31QPSM2"
   },
+  "exotic": false,
   "kavlan": {
     "eth0": {
       "kavlan-1": "192.168.193.17",

data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-18.json

@@ -17,6 +17,7 @@
     "name": "PowerEdge C6420",
     "serial": "31RKSM2"
   },
+  "exotic": false,
   "kavlan": {
     "eth0": {
       "kavlan-1": "192.168.193.18",

data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-19.json

@@ -17,6 +17,7 @@
     "name": "PowerEdge C6420",
     "serial": "31RPSM2"
   },
+  "exotic": false,
   "kavlan": {
     "eth0": {
       "kavlan-1": "192.168.193.19",

data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-2.json

@@ -17,6 +17,7 @@
     "name": "PowerEdge C6420",
     "serial": "17VJSM2"
   },
+  "exotic": false,
   "kavlan": {
     "eth0": {
       "kavlan-1": "192.168.193.2",

data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-20.json

@@ -17,6 +17,7 @@
     "name": "PowerEdge C6420",
     "serial": "31SKSM2"
   },
+  "exotic": false,
   "kavlan": {
     "eth0": {
       "kavlan-1": "192.168.193.20",

data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-21.json

@@ -17,6 +17,7 @@
     "name": "PowerEdge C6420",
     "serial": "31JSSM2"
   },
+  "exotic": false,
   "kavlan": {
     "eth0": {
       "kavlan-1": "192.168.193.21",

data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-22.json

@@ -17,6 +17,7 @@
     "name": "PowerEdge C6420",
     "serial": "31KNSM2"
   },
+  "exotic": false,
   "kavlan": {
     "eth0": {
       "kavlan-1": "192.168.193.22",

data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-23.json

@@ -17,6 +17,7 @@
     "name": "PowerEdge C6420",
     "serial": "31KQSM2"
   },
+  "exotic": false,
   "kavlan": {
     "eth0": {
       "kavlan-1": "192.168.193.23",

data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-24.json

@@ -17,6 +17,7 @@
     "name": "PowerEdge C6420",
     "serial": "31LJSM2"
   },
+  "exotic": false,
   "kavlan": {
     "eth0": {
       "kavlan-1": "192.168.193.24",

data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-25.json

@@ -17,6 +17,7 @@
     "name": "PowerEdge C6420",
     "serial": "79VQSM2"
   },
+  "exotic": false,
   "kavlan": {
     "eth0": {
       "kavlan-1": "192.168.193.25",

data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-26.json

@@ -17,6 +17,7 @@
     "name": "PowerEdge C6420",
     "serial": "79KRSM2"
   },
+  "exotic": false,
   "kavlan": {
     "eth0": {
       "kavlan-1": "192.168.193.26",

data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-27.json

@@ -17,6 +17,7 @@
     "name": "PowerEdge C6420",
     "serial": "79DRSM2"
   },
+  "exotic": false,
   "kavlan": {
     "eth0": {
       "kavlan-1": "192.168.193.27",