无JIRA任务，增加返回所选tab id列表

packages/fineui/src/base/combination/tab.js

@@ -158,6 +158,10 @@ export class Tab extends Widget {
         return this.layout.isCardExisted(cardName);
     }
 
+    getAllCardIds() {
+        return Object.keys(this.cardMap);
+    }
+
     getSelect() {
         return this.curr;
     }

packages/fineui/typescript/base/combination/tab.ts

@@ -31,4 +31,6 @@ export declare class Tab extends Widget {
     populate(): void;
 
     isCardExisted(cardName: string): boolean;
+
+    getAllCardIds(): string[];
 }