New format for the map.

Now it is char-based and not integer-based like the previous one.
The old map works well but for 512x512 maps Unity crashs.
However I don't think is a problem of this new format.
Fixed new map type also in BotController.

Now also the internal represetnation is char-based.
Merge branch 'newmap-format' into develop
Changes in Wall and Floor prefabs.
Now the Doxygen documentation is loaded into the repository.

Handle it with care!
Implemented a Point and Click behavior.

You can attach a ClickListener script to an object to force
a bot to perform an action.
Merge branch 'pointclick' into develop
Create README.md
Removed IBotControl interface.

There is no more reason to use a controller interface.
We are planning to move the interface layer to the Deliberation layer.
New IBotDeliberator interface.

Next step: random walker.
Random Walker deliberator implementation
Merge branch 'deliberator-interface' into develop
Removed hardcoded value from RandomWalker.
Updated Doxygen documentation
Merge branch 'develop'