The direction enum/list has been renamed to direction_list.

All the contents of str_lib of solution and scenario and the header in lib are moved to one file called swarm_sim_header.py

Some bugs has been fixed!

sim.py renamed to world.py
run.py renamed to swarm-sim.py
swarm-sim.py got a new structure for initializing the swarm-sim and calling the solution. The solution calling is independent from vis.py
vis.py: The run method is renamed to draw_world. Solution is not called anymore inside of this method. A new variable called refresh_time is added. The draw window is getting refreshed after each solution has been called and refresh_time is over.

header.py: in the lib a header.py is inserted. In this file all the standards color and direcotries are defined. As well some standard methods for checking or changing the directions.

And fixed a small bug in particle.py

Bugfix run.py and config.py