Summary: port & dependencies for Anthropic's Claude3 LLM and Datasette

[dch]

Summary

• https://llm.datasette.io/en/stable/
• databases/py-sqlite-utils: update to 3.36
• databases/py-sqlite-migrate: [NEW PORT] plugin for py-sqlite-utils
• misc/py-files-to-prompt: [NEW PORT] concatenate files for LLM prompts
• misc/py-anthropic: [NEW PORT] python REST-based SDK for Anthropic API
• misc/py-llm: [NEW PORT] interact with remote and local models incl OpenAI, and Anthropic
• misc/py-llm-claude-3: [NEW PORT] anthropic Claude3 lib for py-llm

Test Plan

poudriere testport OK, needs some python@ people to check over it, works on my machine (tm) for OpenAI and Claude3

[dch]

add Anthropic SDK and add as dependency to llm-claude-3

[yuri]

They LGTM.

Thanks,
Yuri

[loader]

databases/py-sqlite-utils: LGTM

Thanks for updating this port!