Initialisation

Added the packages and files for the backend server

node_modules/@graphql-tools/schema/esm/chainResolvers.js

@@ -0,0 +1,9 @@
+import { defaultFieldResolver } from 'graphql';
+export function chainResolvers(resolvers) {
+    return (root, args, ctx, info) => resolvers.reduce((prev, curResolver) => {
+        if (curResolver != null) {
+            return curResolver(prev, args, ctx, info);
+        }
+        return defaultFieldResolver(prev, args, ctx, info);
+    }, root);
+}