Add dev_commit.sh helper and no-emoji mandate

wp-includes/class.wp-styles.php

@@ -0,0 +1,14 @@
+<?php
+/**
+ * Dependencies API: WP_Styles class
+ *
+ * This file is deprecated, use 'wp-includes/class-wp-styles.php' instead.
+ *
+ * @deprecated 6.1.0
+ * @package WordPress
+ */
+
+_deprecated_file( basename( __FILE__ ), '6.1.0', WPINC . '/class-wp-styles.php' );
+
+/** WP_Styles class */
+require_once ABSPATH . WPINC . '/class-wp-styles.php';