Record that a ticket can be in emergency, or not

src/Bundle/ChillTicketBundle/chill.api.specs.yaml

@@ -255,3 +255,36 @@ paths:
                     description: "OK"
                 401:
                     description: "UNAUTHORIZED"
+    /1.0/ticket/ticket/{id}/emergency/{emergency}:
+        post:
+            tags:
+                - ticket
+            summary: Set a ticket as emergency
+            description: |
+                Re-open an existing ticket.
+
+                If the ticket is already opened, no action will be performed on this ticket: his state will remains unchanged, and the
+                ticket will be returned.
+            parameters:
+                -   name: id
+                    in: path
+                    required: true
+                    description: The ticket id
+                    schema:
+                        type: integer
+                        format: integer
+                        minimum: 1
+                -   name: emergency
+                    in: path
+                    required: true
+                    description: the new state of emergency
+                    schema:
+                        type: string
+                        enum:
+                            - yes
+                            - no
+            responses:
+                200:
+                    description: "OK"
+                401:
+                    description: "UNAUTHORIZED"