Replace builtins input with Click

[iromli]

The pygluu/kubernetes/prompt consists of lots of input calls. Many of them are dealing with default values, confirmation, validation, etc. Those are tedious tasks and error prone.
I would like to propose to replace them with Click.

[moabu]

We need to think this through a bit. The idea from start was to steer away from external libs and use STD library. But at this point we are likely moving into a container environment installer and this repo will be its source. I think its time for Click to walk in. We also should replace argparse since Click will be available.

[iromli]

The idea from start was to steer away from external libs and use STD library

That wouldn't be possible from start as we relies heavily on kubernetes and YAML packages.

[moabu]

as much as possible. :D Anyways as said lets move on with adding It at this point because we will move into using a Kubernetes manifest to install.

[moabu]

change of prompts to Click will be replaced gradually .
#125

[moabu]

#127

[moabu]

#130

[moabu]

#131

[moabu]

#132

[moabu]

0d6bb38

[iromli]

Most of builtins.input have been replaced by click. Closing this issue.