has to extended for multiple

animation bug fixed - automatic speed detection uses passed time instead of the rendering time of first frame

refractored error handling in the visualization.
fixed a small bug with reset on the last vis.run() call.
added the "close_at_end" config for closing the simulator after the algorithm has set the end flag in the world - default is true, only when visualization is on, without the simulator closes always after the algorithm.

fixed the animation with carried tiles. carried particles cannot move now with their move_to method.

- scenario and screenshots "save as" buttons
- anti aliasing (default 4 samples)
- bug fixes + many small changes to the default gui
- svg screenshots (toms_svg_generator, only for TriagularGrid)
- todo next: svg screenshots for all grids

Added a calling vis after the termination of solution so the last frame of the solution will be drawn before the 
simulator ends.

Added the method set_successful_round so to save a success round into the csv file without terminating the solution.
And changed function set_successful_end  so the solution is terminating after this method has been called.

Merge branches '3D-swarm-sim' and 'leader_coating' of gitlab.cs.uni-duesseldorf.de:cheraghi/swarm-sim into leader_coating

Conflicts:
	grids/TriangularGrid.py

Added a new_class attribute in the add_particle function in case someone likes to use its own subclass (new_class) of the class Particle in the solution while running. 

small bug fixes and changes with saving screenshots and scenarios. implemented rendering of the border + show/hide border checkbox in gui

In the config it is possible to choise between two world types: Flat and Mirror.
If the world is flat a particle cannot move outside the border.
If it is mirrored then a particle will show up at the oposite side when it goes outside the border.

3d swarm sim - no vis fix

See merge request cheraghi/swarm-sim!11