[UI][Qt][OSD][LOG] CDROM: May works with new messaging framework.

[UI][Qt][OSD][LOG] CDROM: May works with new messaging framework.

- This also contains logging by SIGNAL()/SLOT() model of Qt for OSD::.
  See osd_base.cpp & osd_base.h .
- Some names of signals and slots are changed . see mainwidget_base.h .
- On EMU:: , for open/close CD-ROM, needs wait correctly.
  See EMU::open_compact_disc() and EMU::close_compact_disc() at emu.cpp .
- [VM][FMTOWNS] Cue parser : Fix typo of .ccd file detection.
                See vm/fmtowns/cdrom/cdrom_ccd_parser.cpp .