Logging and exceptions

[Fenigor]

Before we give the game to other people to test out, we need to have logging of their actions, the state of the field and what was the problem in a clear and understandable format. This is quite important since a bug that can be reproduced is easier to catch, fix and test in order to be prevented.
Something that should be logged as an exception for sure is changing a color from non Black to non Black color.
Also moving a square to a field that is not it's final path.
Not finding a path from A to B but moving anyway.
Bugs like these are already observed