Extract `ext.meta_prog` Package Into It's Own Github Repository Linked as a Submodule

[benoit-dubreuil]

Specifications

• Extract ext.meta_prog package into it's own GitHub repository.
• Include it back inside the project as a git submodule into the lib package.
• Find a way to make it work with the venv.
• If not possible, then find a way to include it as a dependency in the venv.
• Find a way to make its scripts importable as if they were directly in the project.