add shortcut functions for style and script

lib/private/template/functions.php

@@ -23,6 +23,24 @@ function print_unescaped($string) {
 	print($string);
 }
 
+/**
+ * Shortcut for adding scripts to a page
+ * @param string $app the appname
+ * @param string $file the filename
+ */
+function script($app, $file) {
+	OC_Util::addScript($app, $file);
+}
+
+/**
+ * Shortcut for adding styles to a page
+ * @param string $app the appname
+ * @param string $file the filename
+ */
+function style($app, $file) {
+	OC_Util::addStyle($app, $file);
+}
+
 /**
  * make OC_Helper::linkTo available as a simple function
  * @param string $app app