♻ ️ add the get_description method to Quiddity
it is a reduced step that should fix #100 (closed) and it is splitting !471 (closed)
this has three advantage:
- reducing the dependency of
pyquiddity
object to theswitcher
facade - centralise the quiddity `representation into one method
- adding the nickname to it that reduce the need to provide a specific interface for it
Edited by Valentin Laurent