Look into possible (basic) in browser slicing

[kaosat-dev]

This need to be explored, as it could be very interesting, but performance and other aspects might be an issue:

• csg should be easier to slice than stl
• toolpath/ infill/ perimeter generations needs to be explored
• good starting point : http://reprap.org/wiki/Reprap_host_software

Even if performance is bad, it could be interesting for simpler projects

[kaosat-dev]

Started on a possible solution for this : https://github.com/kaosat-dev/CuraEngine-js (nowhere near ready to use just yet)