The assimp_interface was implemented and added to the list of exported targets. This has been done to provide a cleaner and more encapsulated way of managing the assimp dependencies inside the VirtualRobot project. Now, instead of directly linking the assimp libraries to the VirtualRobot target, an interface library (assimp_interface) has been created to manage the assimp dependencies. This library is then linked to the VirtualRobot target. Additionally, install targets have been updated to include the assimp_interface.

This commit improves how we handle the assimp library in our CMakeLists.txt file for the VirtualRobot project. Instead of just linking the library, we now also specify its include and library directories. This provides more flexibility and reliability, particularly in environments where assimp might not be in a standard location.

robot: setting config for all joint types; properly using FourBarFactory; fixes to FourBarJoint; first version working

Set localPose instead of changing only the internal visualization model and then forgetting about this special transform forever. F**k everyone not using Coin, right?

Added sensors to objects;
Added grasp to robot nodes;
Extended RobotIO::RobotDescription;
Allow reloading of the robot visualization if RobotDescription::KinematicStructure is chosen

removed useless find* files. Renamed Coin and SoQt so that it matches the system find files and config files

Added manipulability tracking, composite diff ik, soechting nullspace constraints and an example graphical user interface in RobotViewer

This reverts commit 0e0778dc.

* also clean up cmake

Refactoring of MMM framework to SimoxUtility: Added string helpers and conversion tools, a distinguishable color lookup table e.g. for creating graphs, a rapidxml wrapper for easier parsing of xml files and moved deprecated RobotPoseDiffIK from MMMTools to VirtualRobot