window接口切换

FA模型接口	Stage模型接口对应d.ts文件	Stage模型对应接口
create(id: string, type: WindowType, callback: AsyncCallback<Window>): void; create(id: string, type: WindowType): Promise<Window>;	@ohos.window.d.ts	createSubWindow(name: string, callback: AsyncCallback<Window>): void; createSubWindow(name: string): Promise; FA模型应用通过window.create(id, WindowType.TYPE_APP)接口创建应用子窗口，Stage模型应用可使用WindowStage.CreateSubWindow()接口代替
getTopWindow(callback: AsyncCallback<Window>): void; getTopWindow(): Promise<Window>;	@ohos.window.d.ts	getLastWindow(ctx: BaseContext, callback: AsyncCallback<Window>): void; getLastWindow(ctx: BaseContext): Promise<Window>;