[feature/remove-db-styles] Add schema changes sinces 3.0.x.

PHPBB3-9741

phpBB/install/database_update.php

@@ -1065,10 +1065,19 @@ function database_update_info()
 			    STYLES_TABLE		    => array(
 			        'imageset_id',
                 ),
+				STYLES_TEMPLATE_TABLE	=> array(
+					'template_storedb',
+				),
+				STYLES_THEME_TABLE		=> array(
+					'theme_storedb',
+					'theme_mtime',
+					'theme_data',
+				),
             ),
             'drop_tables'       => array(
                 STYLES_IMAGESET_TABLE,
                 STYLES_IMAGESET_DATA_TABLE,
+                STYLES_TEMPLATE_DATA_TABLE,
             ),
 		),
 	);