Initialisation

Added the packages and files for the backend server

node_modules/@graphql-tools/utils/esm/selectionSets.js

@@ -0,0 +1,5 @@
+import { parse } from 'graphql';
+export function parseSelectionSet(selectionSet, options) {
+    const query = parse(selectionSet, options).definitions[0];
+    return query.selectionSet;
+}