CloneCD support

[Cyorter]

Most emulators for disc-based platforms also support ccd/img/sub files, and some emulators (like Gens or Xebra) read only one bin file so if you have multiple bin files and a cue file, oooh $%&/, and sometimes we need to merge them into one, and most times we merge to a ccd file.
Maybe this is a good idea, for people who are used to ccd files, or for people who converts their multi-bin files with (for example) Xebra CUE2CCD.
The only disadvantage is that almost always we backup a game from our own disc, the result is a cue file, and the best emulators already supports multi-bin files listed by the cue.