Draft: Implement human grouping

Closes #34

source/armarx/navigation/human/ConvexHullGenerator.h

@@ -34,7 +34,7 @@ namespace armarx::navigation::human
      * @brief A GroupShapeGenerator that defines the group shape of a set of humans as the
      * convex hull of their positions in 2D space.
      */
-    class ConvexHullGenerator : GroupShapeGenerator
+    class ConvexHullGenerator : public GroupShapeGenerator
     {
     public:
         ConvexHullGenerator();