Add Skillchecks for Magical Talents (#25)

* initial implementation of spells

* added return list of spells. Moved them into seperate json

* added _some_ chants, restructuring data from spells

* added more chants, added command for getting info

* added related messages, added skillcheck for spells (cast)

* better error handling, added chant command

* (fix) Chants were referring to spells

* cleanup testing variables and code

* updated README

* fixed storage location issues and minor bugs

* removed db storage location

* rc1

* (fix) chants_title

* (fix) Uncaught ReferenceError: Discord is not defined

* (fix) more reference errors

Co-authored-by: Marcus Netz <marcus.netz@godyo.com>

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