fixing build (missing include): moving imp to cpp

source/RobotAPI/components/units/RobotUnit/util/DynamicsHelper.cpp

@@ -134,4 +134,10 @@ namespace armarx
         }
     }
 
+    DynamicsHelper::DynamicsData::DynamicsData(VirtualRobot::RobotNodeSetPtr rnsJoints,
+                                               VirtualRobot::RobotNodeSetPtr rnsBodies) :
+        rnsJoints(rnsJoints), rnsBodies(rnsBodies), dynamics(rnsJoints, rnsBodies)
+    {
+        q = qDot = qDDot = tau = tauGravity = Eigen::VectorXd::Zero(rnsJoints->getSize());
+    }
 } // namespace armarx

source/RobotAPI/components/units/RobotUnit/util/DynamicsHelper.h

@@ -45,11 +45,7 @@ namespace armarx
         struct DynamicsData
         {
             DynamicsData(VirtualRobot::RobotNodeSetPtr rnsJoints,
-                         VirtualRobot::RobotNodeSetPtr rnsBodies) :
-                rnsJoints(rnsJoints), rnsBodies(rnsBodies), dynamics(rnsJoints, rnsBodies)
-            {
-                q = qDot = qDDot = tau = tauGravity = Eigen::VectorXd::Zero(rnsJoints->getSize());
-            }
+                         VirtualRobot::RobotNodeSetPtr rnsBodies);
 
             DynamicsData(const DynamicsData& r) = default;
             VirtualRobot::RobotNodeSetPtr rnsJoints, rnsBodies;