Big Refactoring (BR) of the test execution model Get rid of narval preprocessors in favor of Recipes - Each preprocessing recipe must be run from the "main" recipe (thus we add a ATest.exec_recipe() method that can be called from Recipe execution). - We add a (Repository, checkout_recipe, Recipe) relation, which is the Recipe that tells how to retrieve the code for a given Repository - Also add a (ProjectEnvironment, setup_recipe, Recip) dedicated to perform the installation for a project (compile and install) - Add implementations for these recipes for Python project - Rewrite the quick recipe using this new model

usr/share/narval/checkers
usr/share/narval/preprocessors
usr/share/narval/data
usr/lib/python*