Creates a new model for the clean architecture project

$ mix ca.new.model [model_name]

Creates a new model with default behaviour name

$ mix ca.new.model [model_name] --behaviour
$ mix ca.new.model [model_name] -b

Creates a new model with behaviour name

$ mix ca.new.model [model name] --behaviour-name [behaviour_name]
$ mix ca.new.model [model name] -n [behaviour_name]