Enhancement: make some structs (like TVShow, Movie and Show enum) conform to Encodable and Codable protocols

[thepantalion]

a basic implementation might be to just encode only the basic needed data, like id and: title for a movie, name for a show then retrieve other needed data with a manual call to the methods that talk to TMDb

thanks~

[adamayoung]

Hi @thepantalion. Thanks for using my TMDb Swift Package 🙏🏻

If you take a look at the main branch you'll see all models conform to Codable.