Migrate ncollide docs

[Vrixyz]

Most of https://ncollide.org/ is still relevant for parry.rs ; but needs a few tweaks to be correct ; it would be a great resource for users to learn the library.

I went though and adapted the following parts (checked items still contain limited work to do):

• geometric representations
  • Adapt composite shapes section with SimdCompositeShape
• bounding volumes
  • ⚠️ removed DVT section, it should be translated to QBVH.
  • mention utils::obb ?
• geometric queries
  • absolute coordinates for contacts is not strictly correct 🤔
  • code should be tested (there's a non totally trivial test to adapt)
• mesh transformations
  • Chapter starts with mentions to ToTriMesh and ToLinestrip traits, and procedural module, which don´t exist in Parry.
  • transition from HACD to V-HACD makes it difficult to adapt some wordings
  • ⚠️ removed example code + reference to path transformations
• ⚠️ collision detection pipeline, which is within rapier
• miscellaneous ? ( https://ncollide.org/miscellaneous/ )
  • circumcircle is in Triangle ; it also has a contains_point.
  • sort 🤷
  • triangulate 🤷 (doesn't even exist in ncollide)
• automation to assess what's changed in a PR Migrate ncollide docs #2 ⚠️ blocking
• published https://crates.io/crates/strinject