Updated the Behavior definition and extensions.
The Behavior.cpp/h class now works and can be extended by simply implementing its run() method. However, the subclass must also be extantiated and used in an external executable. An example of this can be seen in PriyaBehavior.cpp/h, and the executable, priya_behavior_process.cpp. In the future, we should move all behaviors into a behaviors/ folder, and autogenerate the executable to be compiled....
Added a template scout simulator class.
Scoutsim is modeled directly from turtlesim. At this point, the only changes are in names and indentation. A separate licensing file was also added to get rid of the junk at the top of the old turtlesim files.