[Feature Request] Enable pagination on list namespaces

[gabizou]

Is your feature request related to a problem? Please describe.

I'd like to use pagination when it comes to listing namespaces (enabling --size arguments)

Additional context

The current protogen files suggest we can leverage sizes, so making use of it in the command layer would be great.

[shakeelrao]

Hey @gabizou, thanks for the feature request!

Just wanted to understand your use-case a little more: does the current tcld namespace list functionality not meet your needs (paginating them before printing to stdout)?

It's a pretty straightforward to add explicit pagination, but just curious -- let me know!