fix adding slides to carousel block

Author: kaeizen

src/block/column/block.json

@@ -13,6 +13,7 @@
 	],
 	"parent": [
 		"stackable/columns",
+		"stackable/carousel",
 		"stackable/feature",
 		"stackable/feature-grid",
 		"stackable/horizontal-scroller",

src/stk-block-types.php

@@ -223,6 +223,7 @@ function stackable_get_blocks_array( $blocks = array() ) {
 				],
 				'parent' => [
 					'stackable/columns',
+					'stackable/carousel',
 					'stackable/feature',
 					'stackable/feature-grid',
 					'stackable/horizontal-scroller',