First class support for Lucid models in @adonisjs/cache

[simoneNEMO]

Background:

• While not officially released, @adonisjs/cache is the de facto cache package for Adonis
• We can assume that caching Lucid models is a common use case in Adonis
• Currently setting a Lucid model into the cache works pretty well but retrieving it results in a plain Javascript object and not a Lucid model

Suggestion: support caching of Lucid models so that the model gets serialised correctly when set into cache and de-serialised into a Lucid model when retrieved from cache (this includes correctly handling of Luxon datetimes)