add default gpu cost

Signed-off-by: Sean Pomeroy <sean.pomeroy@gmail.com>

configs/azure.json

@@ -2,17 +2,18 @@
     "provider": "Azure",
     "description": "Azure estimates based on April 2019 advertised prices",
     "CPU": "0.03900",
-    "spotCPU": "0.007764", 
-    "RAM": "0.001917", 
+    "spotCPU": "0.007764",
+    "RAM": "0.001917",
+    "GPU": "0.0428925",
     "spotRAM": "0.000382",
-    "storage": "0.00005479452" ,
+    "storage": "0.00005479452",
     "zoneNetworkEgress": "0.01",
     "regionNetworkEgress": "0.01",
     "internetNetworkEgress": "0.0725",
     "spotLabel": "kubernetes.azure.com/scalesetpriority",
     "spotLabelValue": "spot",
     "azureSubscriptionID": "",
-    "azureClientID": "" ,
-    "azureClientSecret": "" ,
+    "azureClientID": "",
+    "azureClientSecret": "",
     "azureTenantID": ""
 }