As it is done in src/multibody/parser/python.cpp, one can create a shared_ptr to a new Model in c++,
send this into a python namespace, update it in python, and continue to work on the Model in c++.

An example to use this as a simple parser is given in unittest/python.cpp and models/simple_model.py

(squashed version)

Fix bug when parsing URDF tree + minor clean

Handle the case of base_link with child links connect with fixed joints
and no root joint provided.

Handle future release of Eigen3 

With next version of Eigen3, it seems that there exists a missing
initialiser when calling the cast operator.

With newer Eigen 3 version, the incomplete namespace specification
leads to compilation errors.

Eigen::ProcuctReturnType becomes Eigen::Product in Eigen version >=
3.3.0.

Improve the packaging regarding to different UNIX systems

Devel

[C++] Added type of Frame JOINT. Even if it is a redundent information, add a frame for each joint added

[C++] bodies are now a subpart of the Frames : some Frames are of type BODY and when referring to getBodyId/Name in Model it will look in its frames

Fix an other bug in the romeoWrapper init

[C++][FixBug] Fix the visitor for calc (0 and 1st order) and calc_aba + added visitor on the shortname of a jointmodel derived type

[Python] Rename file into joint-derived.hpp to correspond to the type it exposes. i.e it does the exposition for each derived joint model ( that are in the joint model variant

rework model (joints/bodies) + fix RobotWrapper link to viewer

[C++] Fix multiple bugs such as getting the correct name of geometryObjects, or initialize the bodyParents vector correctly, + binded some model datas