Monorepo build/publish can build/publish all packages

[ronamir1]

Enhance the build command in PDM to support monorepos by enabling recursive package builds. This feature would automatically detect and build all packages within a repository, respecting dependencies and configurations defined in pyproject.toml. Additionally, extending this functionality to the publish command would allow seamless CI/CD integration for multi-package repositories. This feature could help teams using monorepos in Python development.