Add build files for Composer package distribution

Author: actions-user

build/index.asset.php

@@ -0,0 +1 @@
+<?php return array('dependencies' => array('wp-block-editor', 'wp-blocks', 'wp-data', 'wp-editor', 'wp-i18n'), 'version' => '834ec7bf2c5646d14f1a');