Some nice-to-have features

[samansmink]

This issue groups a few nice-to-have features we would like to see added. Issue will be updated as we think of more, feel free to contribute ideas

• [ ] Update notifier: Third party extension maintainers should notified through some way of a new DuckDB release.
• [ ] Some standardized way of getting documentation on an extension (either a block of text or a url to the docs)
• [x] Auto-Install extension dependencies
• [ ] Use duckdb clang-format, clang-tidy, and editorconfig
• [ ] Ensure release also produce binaries as artifacts on github for all builds
• [ ] Change extension script path: It currently prefixes all paths with the extension namespace, this should be a configurable path to allow deploying multiple extensions to the same directory allowing a single set custom_extension_repository to easily access a bunch of extensions that are separately managed
• [ ] CI to ensure both linkage of the static extension and loadable extension are correct: especially when an extension links against other libraries, errors here are easy to make rendering the extension unloadable.
• [ ] Explain how the build process works of extensions: clarify that duckdbs cmake file is the root cmakefile
• [ ] Document and/or provide template for linking dependencies to both static lib and loadable extension