class Avo::Fields::FieldManager

Avo::Fields::DateTimeField -> date_time
Avo::Fields::TextField -> text

If the field has their `def_method` set up it will follow that convention, if not it will snake_case the name:

so later we can instantiate them on our resources.
This method will find all fields available in the Avo::Fields namespace and add them to the fields class_variable array

def init_fields
  Avo::Fields::BaseField.descendants.each do |class_name|
    next if class_name.to_s == "BaseField"
    if class_name.to_s.end_with? "Field"
      load_field class_name.get_field_name, class_name
    end
  end
end