MSX2 and DOS versions now available

Thanks to @uto_dev, you can now play Rite of the Druid on MSX2 and DOS.

Notes:
MSX2 version contains DSK and ROM files. The ROM has been tested in BlueMSX emulator and works, but there are issues running it on a flashcart, so the DSK is advised for real hardware.
The DOS version will require DOSBox.