[Plugins] Allow CouchDB URL to be specified

src/plugins/plugins.js

@@ -41,6 +41,21 @@ define([
 
     plugins.CouchDB = function (url) {
         return function (openmct) {
+            if (url) {
+                var bundleName = "config/couch";
+                openmct.legacyRegistry.register(bundleName, {
+                    "extensions": {
+                        "constants": [
+                            {
+                                "key": "COUCH_PATH",
+                                "value": url,
+                                "priority": "mandatory"
+                            }
+                        ]
+                    }
+                });
+                openmct.legacyRegistry.enable(bundleName);
+            }
 
             openmct.legacyRegistry.enable(bundleMap.couchDB);
         };