* Fix getting version of aliyun cli.
It has a version sub command, and --version is used to specify product api version,
not to get version of aliyun cli.
* Change title of aliyun-cli
* azcopy10 deployment for Windows has been added
* small bugfixing
* Header has been added to Install-AzCopy.ps1
* Header has been added to Validate-AzCopy.ps1
* Packer tempaltes have been modified