Implement CDT bulk load method that don't panic if constraints intersect

[ThierryBerger]

• Fix Implement CDT bulk load method that don't panic if constraints intersect #105

As #105 is labeled good first issue, I took my chances, I look forward to feedbacks to help me bring it to completion.

background

• I'm coming from parry ecosystem, where incorrect input is often source of frustration from users: crash mesh_intersection with co-planar triangles dimforge/parry#350

Current state

I added try_bulk_load_cdt_stable and try_bulk_load_cdt functions, as well as a test.

Existing try_bulk_load*s are affected as their functions now use the try_add_constraints., but their behaviour is kept to panicking on conflicting edges encountered.

[Stoeoef]

Thank you so much for opening this PR!

I've done a cursory review, most of this already looks pretty good.

The performance impact of using try_add_constraint should be negligible - no worries there.

However, we'll need to keep the old panic behavior for bulk_load_cdt - could you take a look into that? Thank you!

[Stoeoef]

There are also two clippy lints.

Please add an appropriate [ignore] for the "error: very complex type used. Consider factoring parts into type definitions" lint - I'll see if this can be simplified (though I don't think so...)

[Stoeoef]

All looks good to me. 💯
Thank you for the contribution - merging in!

I'll have a look at [try_]bulk_load_cdt_stable - maybe it can easily be improved? - and will create a new Spade version once that's done.