Adds Ollama and OpenWebUI services as tools

[tonysm]

Changelog

• Adds Ollama as a tool
• Adds OpenWebUI as a tool

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These both tools should work together. But we can use Ollama without the OpenWebUI tool (in case we're using Ollama in an application).

To run the Ollama tool (use defaults):

php ./takeout enable ollama

To run the OpenWebUI (use defaults):

php ./takeout enable openwebui

This should start Ollama at port 11434 and OpenWebUI at port 3000.

Open http://localhost:3000 (it takes a while for OpenWebUI to load), navigate to the top-right corner Admin Panel menu:

Screenshot

Then, to the Settings -> Models section, choose a model (like llama3), then hit the download button... this will take a while...

Screenshot

Once it's done downloading, you can hit "New Chat" at the top-left corner, then choose the downloaded model in the model dropdown, then use it

Screenshots