New sport.db Events - Copa América, Gold Cup, Confederations Cup, Copa Libertadores

[Gerald Bauer]

Hello,

I've added some more events/fixtures to the sport.db repo. New
tournaments include:

- Copa América
- Gold Cup / Copa de Oro
- Confederations Cup
- Copa Libertadores
- Champions League (North/Central America & Caribbean)
- Africa Nations Cup
- and some more [1]

Note, I've moved all football (soccer) fixtures to its own repo,
that is, football.db [2].

That's it. Questions? Comments?

Cheers.

[1] http://sportdbdemo.herokuapp.com/events
[2] https://github.com/geraldb/football.db