[discussion] Find a new way to install CLI

[gaocegege]

ref #25 (comment)

I think we could find a better way to install the cli.

[YujiOshima]

I can come up with at the moment as below.

• With go schema

  • The easiest way, You can simply do go get github.com/kubeflow/hp-tuning/cli.
    But it's difficult to specify the version.
  • Build from source. Thanks to your PR, we can build cli without go get every package.

• Using GitHub release. Push binary with manually or CI, and download it.

[gaocegege]

I prefer the second way, and I think it is better to publish a version and let users use this version.

[gaocegege]

We released a version, then we could push the binaries to it.