Replace File.open with 'readlines'
Add support class to supply util methods
Call Engine#run
Require laby/support
Finish one steps play:
- add windows platforme to Gemfile.lock
- add Engine#run
- add directions hash to Player
- change the way to pass file name from ARGV (use pop)
- remove game_set from 'query_next_direction'  method parameter
- add support class to create players and get their x and y