Optimize steering behaviour

[ufdada]

Since our steering system is quite simple (no obstacle avoidance etc.), we need to improve it to better fit the original.

There are several presentations and papers based on robin greens work (he was responsible for the navigation tech at bullfrog in dk2).

• Diploma paper with source for a steering creator in java: http://fbim.fh-regensburg.de/~saj39122/feisch/Diplomarbeit/
• Another paper from Craig Raynolds: http://www.red3d.com/cwr/papers/1999/gdc99steer.pdf
• Original powerpoint of Robin Green:
  • http://studyres.com/doc/7241138/
  • https://basesandframes.files.wordpress.com/2016/05/steering-behaviours-siggraph2000.ppt (See also here: http://www.red3d.com/siggraph/2000/course39/ and https://basesandframes.wordpress.com/2016/05/13/steering-behaviors-siggraph-2000/)