Log Message:
Add converters/cue2pops.

Contributed in a private email by embr@liclac.eu, thx!

cue2pops is a tool for converting PlayStation 1 backups in .CUE/.BIN format to
.VCD, the format supported by the PlayStation 2's POPS emulator.

The original cue2pops is Windows-only, this is the cue2pops-linux fork.