Ucloud-sdk-python2

BUG FIXES:

- Fix python 2 compatible helpers for nested CJK charset

ENHANCEMENTS:

- Add `CreateCertificate` api
- Add `DescribeCertificate` api
- Add `DeleteCertificate` api
- Add `DescribeOPLogs` api
- Update `DescribeVMInstance` api
- Update `CreateVS` api

FEATURES:

- Add `ucloudstack` product

ENHANCEMENTS:

- Add `deprecated` decorator

BUG FIXES:

- Fix `DescribeSubnetResource`

**IMPORTANT!** Use the same version to [ucloud-sdk-python3](https://github.com/ucloud/ucloud-sdk-python3/releases)

FEATURES:

- Add ssl options of client (14)
- Add `ufs` product (14)

ENHANCEMENTS:

- Add testing report use ucloud test framework (14)
- Update `DescribeSubnet` api (14)

ENHANCEMENTS:

- Update fields of `UHost` api
- Add `DescribeIsolationGroup ` of `UHost`
- Add `DescribeUHostInstanceSnapshot` of `UHost`

BUG FIXES:

- Fix fields of `BatchDescribeNewUcdnDomain`