the feature implement a paper: https://art-science.org/journal/v7n4/v7n4pp155/artsci-v7n4pp155.pdf
there is some generator to test the optimisation in: ./clitools/generators/drawingTests/
Now, all the optimisation will be in ./libs3/plotOptimizer.py
in ./libs3/tracer3.py the adding of point is avoid an will be replace by the optimisation from the paper
