Add support for TV Shows

[wtimme]

Is your feature request related to a problem? Please describe.
The app is great so far, thanks a lot! It helps me get rid of a (not-very pretty) list I kept in Notes.app.
Another list that I have is the one with the TV shows I plan on watching. I would like to be able to add them to the app.

Describe the solution you'd like
I want to be able to search for TV Shows and track them, similar to movies. When I tap the "+" button, I should be able to search for TV Shows.
Visually, the app could present a segmented control with the options "Movie" and "TV Show".
The information displayed for TV Shows could initially be the same as for movies.

Documentation

• Movies API
• TV Shows API

[wtimme]

Looking at the code, I feel like this requires a little bit of planning.

The Movie model has some properties that it shares with a TV Show, namely

• id
• title (a TV Shows has a name)
• voteAverage
• voteCount
• posterPath
• overview
• releaseDate(a TV Shows has a first_air_date)

How can we avoid redundancy? I feel like just copy-and-pasting the Movie model is not the way to go here.