[CURA-9178] Port external Voronoi fixes

[rburema]

Workarounds and fixes for certain Arachne foibles. Mostly to do with crashes due to improper Voronoi generation by Boost (or pre-processing necessary for that).

See individual commit messages for greater explanation.

We received a mail from someone that pointed us to these extant fixes. Would be a shame if we didn't incorporate them ;-)

--> Currently in draft, as it only compiles, not tested yet at all!

--> Also there are some problems, see the discussion(s) below. My attempt(s) to fix these went beyond a port (but are simplified as well in way) and can be found in the CURA-9178_temp_sidebranch.

[github-actions[bot]]

Unit Test Results

25 tests  ±0   25 :heavy_check_mark: ±0   13s :stopwatch: +5s   1 suites ±0     0 :zzz: ±0    1 files   ±0     0 :x: ±0 

Results for commit 42182a26. ± Comparison against base commit 36e778f9.

:recycle: This comment has been updated with latest results.

[Piezoid]

This looks very interesting as a solution for this long standing issue!

However I can't slice simple models with it. After Detected non-planar Voronoi diagram even after the rotation of input., it segfaults trying to access a point on an polygon that was destroyed.

rotate_fail.zip

[rburema]

This never worked properly for us, and we've got a completely different workaround by using the Wagyu library to fix our polygons instead. (See: #2030 )