Anki add-on: 3 add-ons merged: quicker anki, explain deletion, explain database check

I created three add-ons which are incompatible, mostly because they edit the same module. So this add-on only purpose is two allow many add-ons to be used simultaneously. I may add other add-on in this one later, if required because of incompatibilities. Please see https://github.com/Arthur-Milchior/anki-big-addon for more informations

GitHub repository: arthur-milchior/anki-big-addon
Repository description: A merge of different incompatible add-ons
Languages: Python