Initialisation

Added the packages and files for the backend server

node_modules/@apollo/protobufjs/cli/targets/json.js

@@ -0,0 +1,8 @@
+"use strict";
+module.exports = json_target;
+
+json_target.description = "JSON representation";
+
+function json_target(root, options, callback) {
+    callback(null, JSON.stringify(root, null, 2));
+}