v0.01-alpha refactoring

[LyashenkoGS]

Performance measures show huge overhead on logging and getAllAvailableSteps method.

The project was run via:

mvn exec:java -Dexec.mainClass="com.google.hashcode.App"

finished with exeption:
medium.in exeption.txt

Estimate for the end of refactoring -> 1 hour to perform pizza slicing for all the pizzas'

Solution:

• decrease logging for big slices. Put an if to toString methods based on an entity size
• perform method getAvailableSteps for a part of start positions. //TODO more precise description and a diagram

The issue implementation shouldn't break the algorithm fo example.in file!