Define how partners should be ranked

We should document how partners are ranked, since up until now I was the one who assigned the rankings, and they were based on my own subjective criteria from quite a while ago.

My reasoning was that a higher number meant a higher priority:

• Tier 3: Critical infrastructure, or partners that covered multiple categories.
• Tier 2: Partners that provide an important service in a single category (e.g. ESP or Security).
• Tier 1: Partners that support non-critical infrastructure, such as downloads or content.

I don't think these criteria should just be based on my personal opinion, though. They should be documented and agreed upon by the people who oversee the project as a whole.

Aucun fichier, test ou point d’entrée n’est identifié ; commencez par examiner les critères de Tier 1–3 proposés dans cette Issue ainsi que la discussion des responsables du projet. Le travail est terminé lorsque les critères de classement ont été convenus et documentés dans la documentation appropriée du projet.