Neural network uses two outputs

* Added the second output in neural network. It controls the speed of
the eater
* Added sounds
* Changed the parameters of the algorithm
Really working version

FIXED: Really main bug fixed in main module
Added: angle of vision
Configuration moved to a separate file

Configuration moved to a separate file
Several comments added
Removed borders for eaters
New variable names
Chart added

Added chart
Changed evolution settings and neural network input
All the eaters have the same brains

У всех пожирателей мозг теперь одинаковый. Есть несколько популляций
пожирателей, каждая из них живёт одно и то же время. В зависимости от
объема съеденной за это время еды запускается генетический отбор.
Minimalistic version is ready

Text messages
Plot
Created class for environment

Environment class contains eaters, food and neural network.