feat: Add freezed as an option to the model brick

[LukeMoody01]

Brick

• [x] model

Description

Add the option for a freezed model.

Desired Solution

Give the user an option to pick a version of the mode (freezed, json_serializable, none)

Uses the enum as a conditional

Additional Context

Suggestion from -> https://twitter.com/Daniel_Felten/status/1541052175094267904