Shazamio

Fixes for 18:
Models added for TrackInfo._sections:
LyricsSection
ArtistSection


Changed access to attributes:

timeskew - > time_skew
frequencyskew -> frequency_skew
tabname -> tab_name
toptracks -> top_tracks
lyricsid -> lyrics_id
providername -> provider_name
commontrackid -> common_track_id
beacondata -> beacon_data
retryms -> retry_ms

Update pypi docs

* More serialization factories.
* Added support for getting youtube link to a song [CLICK](https://github.com/dotX12/ShazamIO/blob/master/examples/recognize_track_youtube.py).
* Serializers work in a new format.

- added support for recognizing songs from bytes.

Added a new method for counting the number of listens about track (listening_counter).