Add workflow for TWAMP deployment

gso/translations/en-GB.json

@@ -36,9 +36,10 @@
         }
     },
     "workflow": {
-            "modify_isis_metric": "Modify the ISIS metric",
-            "modify_trunk_interface": "Modify IP Trunk interface",
-            "migrate_iptrunk": "Migrate IP Trunk",
-            "confirm_info": "Please verify this form looks correct."
-	    }
+        "deploy_twamp": "Deploy TWAMP",
+        "modify_isis_metric": "Modify the ISIS metric",
+        "modify_trunk_interface": "Modify IP Trunk interface",
+        "migrate_iptrunk": "Migrate IP Trunk",
+        "confirm_info": "Please verify this form looks correct."
+    }
 }