Log Message:
Add audio/p2-clone

ProTracker 2 clone for Windows/macOS/Linux

Aims to be a highly accurate clone of the classic ProTracker 2.3D software for
Amiga. Has additional audio filters and audio mixer improvements to make it
sound close to a real Amiga computer.

What is ProTracker? Read about it on Wikipedia:
https://en.wikipedia.org/wiki/ProTracker