Release 2.0.2

[anoziere]

• Add the auto release workflow shared by the other modules: the next version bump of Config/module.xml publishes the tag and the release.
• Declare the module stable.
• Drop the issue numbers of the original project's tracker from code comments.
• README and changelog: Thelia 2 shops use the 1.x line on the thelia2 branch.

[anoziere]

Superseded by #3: the release workflow, the tracker cleanup, the thelia2 pointer and the stable flag shipped in 2.1.0, so a 2.0.2 bump no longer applies.