Manux

I'm announcing a new update for Manux. Here are the core changes:

- Updated process creation logic in proc.asm to include process count checks.
- Enhanced syscall handling in system_call.asm with new syscalls for file operations (open, close, create, execs).
- Modified shell.c to integrate new file handling commands and improved terminal interaction.
- Introduced file descriptor management in fd.c for better resource handling.
- Implemented device filesystem in devfs.c to manage device interactions.
- Developed memory filesystem(MFS) in mfs.c.
- Added bootloader in BOOT.bas and kernel initialization in kernel.c.
- Created upload script upload.sh for automated kernel uploading via serial.
- Updated syscall interface in syscall.c to support new functionalities.
- Added debugging capabilities.