Add endpoint with version of the API

src/api/routes/service/versionGET.js

@@ -0,0 +1,15 @@
+const Route = require('../../structures/Route');
+
+class versionGET extends Route {
+	constructor() {
+		super('/version', 'get', { bypassAuth: true });
+	}
+
+	run(req, res) {
+		return res.json({
+			version: process.env.npm_package_version
+		});
+	}
+}
+
+module.exports = versionGET;