ECOM-4904 Move the program editor backbone app to Studio (#12962)

cms/static/js/programs/utils/api_config.js

@@ -0,0 +1,21 @@
+define([
+        'js/programs/models/api_config_model'
+    ],
+    function( ApiConfigModel ) {
+        'use strict';
+
+        /**
+         * This js module implements the Singleton pattern for an instance
+         * of the ApiConfigModel Backbone model.  It returns the same shared
+         * instance of that model anywhere it is required.
+         */
+        var instance;
+
+        if (instance === undefined) {
+            instance = new ApiConfigModel();
+        }
+
+        return instance;
+
+    }
+);