Add decks feature to module

[spacegiant]

Adds compendium items for preset decks to module - a matching rollable table and macro. Refactors previously shared macros examples to be simpler for the user. Adds module setting for location of deck folders. Doesn't include any card images or copyrighted materia

Visual overview for reference: l.

[saif-ellafi]

Amazing!!! Thank you a lot for contributing to a single place! Will check it out soon and release if all is good :)