Description

    The import method of container classes has been changed to improve efficiency.
    Previous import method: import { ArrayList } from '@ohos.util.ArrayList'
    Now import method: import ArrayList from '@ohos.util.ArrayList'
    Related issue
    #I4TCSR:midified containers class API interface reference description
Signed-off-by: Nwangyong <wangyong237@huawei.com>

Adds an API interface reference description file for 14 container
classes
Signed-off-by: Nlinhaoran <linhaoran2@huawei.com>