Add getLeftSingularValue to SVD

source/RobotAPI/libraries/core/math/SVD.h

@@ -49,6 +49,10 @@ namespace armarx
             {
                 return matrixU.block<3, 1>(0, nr);
             }
+            float getLeftSingularValue(int nr)
+            {
+                return singularValues(nr);
+            }
 
         };
     }