DXF Serialize Renovation

[z3dev]

COMPLETE

Tasks:

• [X] Update to ES6 / JSCAD coding standards
• [X] Rework support for CAG to LWPOLYLINE entity
• [X] Add support for CAG to POLYLINE (2D line) entity
• [X] Add support for CSG to 3DFACE entities
• [X] Add support for CSG to POLYLINE (3D faces) entity
• [X] Add support for Path2D to LWPOLYLINE entity
• [X] Add test suites for the above
• [X] Update README

[z3dev]

Mark, I'd appeciate it if you could review for anything out of place.

[kaosat-dev]

Hi ! I will have some time to take a close look today !

[jakeNiemiec]

Can't wait to use this, thanks for all the hard work!