Project - Mock project for smoke tests

[pylapp]

Provides a fake dumb projects on which each command of the toolbox will be ran so as to check if everything works well.

[pylapp]

A fake Git repository can be defined with all useful data for scripts, and then result files and expected files could be comapred for assertions.

For API of GitHub and GitLab, maybe a good first start could be to check if the requests don't fail or don't return some 4xx or 5xx errors. Then make more integrations tests with true mocks.