Interactive Mode

[p-vdp]

It would be useful to have an interactive mode accessed via CLI and the REST API (see also #183) , something like this:

$ python -m ollama --endpoint http://remotehost:11434 --model llama3 --interactive

[Connected to endpoint: http://remotehost:11434]
[Model: llama3]

$ Why is the sky blue?

The sky appears blue because of a phenomenon called scattering, which occurs when sunlight interacts 
with tiny molecules of gases in the Earth's atmosphere.

[mxyng]

As mentioned in #185, a CLI is be out of scope of this repo