增加描述

typescript/base/foundation/message.ts

@@ -0,0 +1,6 @@
+export type _msg = {
+  alert: (title: string, message?: string, callback?: (result?: boolean)=>void) => void
+  confirm: (title: string, message?: string, callback?: (result: boolean)=>void) => void
+  prompt: (title: string, message?: string, value?: any, callback?: (result: string) => void, min_width?: number) => void
+  toast: (message: string, options?: object, context?: HTMLElement ) => void
+}