Export BlueprintAsset reference types from package

Author: brandonpayton

packages/playground/blueprints/src/index.ts

@@ -12,6 +12,8 @@ export type {
 	OnStepCompleted,
 } from './lib/compile';
 export type {
+	BlueprintAssetReference,
+	BlueprintAssetDirectoryReference,
 	CachedResource,
 	CorePluginReference,
 	CorePluginResource,