Merge branch 'feature/natural-robot-placement-to-master' into 'master'

VirtualRobot/CMakeLists.txt

VirtualRobot/IK/CompositeDiffIK/Soechting.h

...K/CompositeDiffIK/SoechtingNullspaceGradientWithWrist.cpp

.../IK/CompositeDiffIK/SoechtingNullspaceGradientWithWrist.h

VirtualRobot/IK/Constraint.cpp

VirtualRobot/IK/DifferentialIK.cpp

VirtualRobot/IK/HierarchicalIK.cpp

VirtualRobot/IK/JacobiProvider.cpp

VirtualRobot/IK/JointLimitAvoidanceJacobi.cpp

VirtualRobot/IK/constraints/BalanceConstraint.cpp

VirtualRobot/IK/constraints/PoseConstraint.cpp

...Robot/IK/constraints/ReferenceConfigurationConstraint.cpp

VirtualRobot/IK/constraints/TSRConstraint.cpp

VirtualRobot/Nodes/RobotNode.h

VirtualRobot/Visualization/ColorMap.cpp

VirtualRobot/Visualization/ColorMap.h

VirtualRobot/Workspace/NaturalPosture.cpp

VirtualRobot/Workspace/NaturalPosture.h

VirtualRobot/Workspace/WorkspaceGrid.cpp

VirtualRobot/Workspace/WorkspaceGrid.h