Run interactive cli program.

[Alexey Veselovsky]

I have wrote and run very simple program:

main = do c ← getChar
          print c

How to enter smth data to stdin?
Log window is read only. It is also not possible to stop this program.

Also this program blocks leksah if I run it in ghci mode. (if I select
"stop debug" menu, then leksah just closes down).