Initialisation

Added the packages and files for the backend server

node_modules/graphql/jsutils/devAssert.js

@@ -0,0 +1,14 @@
+'use strict';
+
+Object.defineProperty(exports, '__esModule', {
+  value: true,
+});
+exports.devAssert = devAssert;
+
+function devAssert(condition, message) {
+  const booleanCondition = Boolean(condition);
+
+  if (!booleanCondition) {
+    throw new Error(message);
+  }
+}