more clean up now in main.hs

- use currying
- simplify draw world
- prefer where to let
Add hits for the hero

- this code must be worked father. I am not happy that a
  hit stays drawn. Possible solutions (replace hscurses,
  find a way to find out if a key is still holded,
  remove it after a certian amount of time)
Add a log line on the first row
Add stat line