Implementation of a streams merger

[vicente-gonzalez-ruiz]

A streams merger is an HTTP client that inputs two (or more) streams from two (or more) peers that belong to two (or more) teams that are broadcasting the same content, and outputs a stream that is the union of the inputs. A stream merger can be useful in those cases where the loss of chunks in the teams is high.

Some useful stuff can be found here: https://github.com/P2PSP/console/blob/master/src/synchronizer.cc