Extracts files from FAT12 KolibriOS image to specified folder.
unimg path/to/img [output/folder] [-e]
If output folder is skipped, the image will be unpacked at /TMP0/1/KOLIBRI.IMG
Options:
-e: Exit on success
tcc fat12.c -lck -o unimg.kex
Default toolchain for TCC on Kolibri, got from KolibriISO/develop/tcc