Connect Spotify API to Flutter App

This is a small app, you will only connect the Spotify API to an app creating a Spotify login option and different endpoints such as getting users top tracks and artists to track images.

Here are the project tasks (all similar http requests):
* Get albums, tracks, artists and their images
* Get audio features for a single and multiple tracks
* Get users saved tracks
* Get recommendations
* Get users top artists and tracks (by available dates)
* Get followed artists
* Get genre seed parameters
* Play, and Pause song track
* Login with Spotify (I will help integrate with firebase authentication if needed)