Merge branch '39-fix-swagger-for-survery-message' into 'dev'

add message_type field to survey message to swagger

Closes #39

See merge request !26

project/soar/swagger.json

@@ -988,6 +988,14 @@
                   "format":"float",
                   "type":"number"
                },
+               "message_type":{
+                  "description":"Type of message",
+                  "enum":[
+                     "survey"
+                  ],
+                  "example":"survey",
+                  "type":"string"
+               },
                "platform_ID":{
                   "description":"Unique identifier for this platform",
                   "example":"ecosub-2",