add CLI deployment to each framework

[edublancas]

once https://github.com/ploomber/cli/issues/36 is merged, we can add a command for users to deploy an application from the CLI

for example, in flask:

pip install ploomber-cloud
ploomber-cloud key YOUR-KEY
ploomber-cloud examples docker/flask
ploomber-cloud init
ploomber-cloud deploy --watch

[edublancas]

let's start with the ones that appear in our grid: voila, panel, solara, streamlit, and shiny R

note that some examples require OpenAI keys, so let's choose some example that doesn't require anything but still shows something to spark interest in users

[bryannho]

@edublancas this was addressed in #138 so I think it can be closed

[edublancas]

good catch