kaitai-struct-compiler turns off character echo
Originally posted at https://github.com/kaitai-io/kaitai_struct/issues/1208 by @julie-bsx

> This was pretty hard for me to grasp, but it's recreatable.
> 
> Running Cygwin on Windows 10, `kaitai-struct-compiler` straight-up turns off terminal echo and it has to be turned back on with `stty sane`. I created a `Makefile` to do this for me because it has been driving me _*mad*_.
> 
> And I'm very sorry that I'm running KSC on Cygwin. So very sorry.