Fix generation of XML documentation. 

Add MeshLoader::loadOctree

Sync submodule cmake

Fix packaging issue

Bug fix + prepare optimization of collision using GJK / EPA

Add missing constructor for Transform3f

And define scopes

It is set in test.cmake

It is useless

It is included in base.cmake, which is included in hpp.cmake

ref. https://github.com/jrl-umi3218/jrl-cmakemodules/issues/338

This is a temporary change. Instead, we should rely on
obbDisjointAndLowerBoundDistance eventually followed by boxBox2 (algo
that computes a penetration depth). I don't know whether boxBox2 is
correct.