eSDK Cloud Storage Cinder Driver 2.6.2
1.The modify_qos_with_volume interface is added.
2.update docs
3.use new query storagepool interface instead old one to improve effiency,
4.the reload_qos interface customized for ZTE cloud platform is added to dynamically update,delete and add qos
5.the timeout interval for invoking Huawei storage RESTful interface