ISO Loader 0.8.x Beta + preview of DreamShell v4.0 RC 5

[SWAT]

New build: https://github.com/DC-SWAT/DreamShell/re...0.0RC5-T26

- Updated KallistiOS
- Migrated to GCC 13
- Fixed IGR
- Fixed board ID (need test)
- Fixed CDDA main loop

I reviewed the CDDA code in loader 0.6 and found one missing condition in the main loop of 0.8. Perhaps there will be less unhandled distortions and maybe better to works with the modem, but this is not certain, need test. I just played a few levels in Q3 and there seems to be less distortions.
In all other cases, you can return most of the work to 0.6-like simply by turning off the IRQ hooking.

BTW, good job @pcwzrd13!