Add new port net/bredbandskollen

Add a new port, net/bredbandskollen (broad band check in English). This is
a tool to test and measure the speed of broad band connections. It is made
available by the Internet Foundation In Sweden.

This is the cli client tool, a similar check can be made from a web
application.

The optional GNUTLS option makes it possible to run measurments over SSL
connections.

WWW: https://github.com/dotse/bbk
http://www.bredbandskollen.se/

Sponsored by: B3 Init