interface improvement
yermilov/polyhedron-6 in process
further algorithm development
yermilov/polygonization-6 in process
yermilov/polygonization-6 in process
further algorithm and drawer development
clean drawing code
minor naming changes
further algorithm development
fix minor mistakes
unit test for yermilov/polygonization-20
fix yermilov/polygonization-20
unit tests for yermilov/polygonization-21
fix yermilov/polygonization-21
fixing yermilov/polygonization-21
fixing yermilov/polygonization-21
fix yermilov/polygonization-21
fix minor mistakes

- facet visibility
fix mistakes

- remove eyePoint from outside points;
- generalize some interfaces;
- add visibility check for moveToOutsideSets;
- fix AngleBetweenLines
fix mistakes

- removing inside points from outside points
- determine outside points
- remove get facet's point position
- fix determing is point inside
- rename capacity to volume
- add NaN check in segment intersection with facet
- fix lines angle determinition