Offer a frontend to evaluate dynamic metadata fields #242
Description
I am still reading the PEP790 proposal, and one issue I've found there would be that it would be hard to make it backwards compatible for either IDEs or other static readers. One way around it is for the pip/uv etc. frontends to offer an interface to extract the dynamic metadata, but it would be dependent on the specific frontend. Instead, what about offering such an interface in this project instead. Just a small wrapper to output either a METADATA file or json/toml outputs of the original pyproject.toml with the dynamic fields made static. This at least would provide a lightweight front-end independent way of parsing the dynamic metadatas.