Add new cli tool

cli/update-remote-user.js

+const updatePerson = require('../built/remote/activitypub/models/person').updatePerson;
+
+const args = process.argv.slice(2);
+const user = args[0];
+
+console.log(`Updating ${user}...`);
+
+updatePerson(user).then(() => {
+	console.log(`Updated ${user}`);
+}, e => {
+	console.error(e);
+});