Initialisation

Added the packages and files for the backend server

node_modules/graphql/jsutils/printPathArray.js

@@ -0,0 +1,17 @@
+'use strict';
+
+Object.defineProperty(exports, '__esModule', {
+  value: true,
+});
+exports.printPathArray = printPathArray;
+
+/**
+ * Build a string describing the path.
+ */
+function printPathArray(path) {
+  return path
+    .map((key) =>
+      typeof key === 'number' ? '[' + key.toString() + ']' : '.' + key,
+    )
+    .join('');
+}