v1.6

Working Linux Port! Uses some potentially non-standard terminal colors, so if you're on an absolute potato, might not work. Tested on Ubuntu 22.04 and Oracle Linux 9.4. Compiles on both x86 and aarch64.

Also fixed a few bugs related to the ghost piece erasing blocks where it shouldn't.

Might look at optimizing the Windows version and/or making it non-windows.h and conio.h reliant.