Add option to return project timestamp

lib/www/server/lib/db/project/get.js

@@ -1,8 +1,14 @@
 const { setSurvey, pool } = require('../connection');
 
-async function get () {
+async function get (opts = {}) {
+
+	const select = opts.timestamps
+		? "last_project_update(pid) tstamp,"
+		: "";
+
 	const text = `
 		SELECT
+			${select}
 			pid,
 			name,
 			schema,