SetGroupName for mobility module

src/mobility/model/constant-acceleration-mobility-model.cc

@@ -26,6 +26,7 @@ TypeId ConstantAccelerationMobilityModel::GetTypeId (void)
 {
   static TypeId tid = TypeId ("ns3::ConstantAccelerationMobilityModel")
     .SetParent<MobilityModel> ()
+    .SetGroupName ("Mobility")
     .AddConstructor<ConstantAccelerationMobilityModel> ();
   return tid;
 }

src/mobility/model/constant-position-mobility-model.cc

@@ -28,6 +28,7 @@ ConstantPositionMobilityModel::GetTypeId (void)
 {
   static TypeId tid = TypeId ("ns3::ConstantPositionMobilityModel")
     .SetParent<MobilityModel> ()
+    .SetGroupName ("Mobility")
     .AddConstructor<ConstantPositionMobilityModel> ()
   ;
   return tid;

src/mobility/model/constant-velocity-mobility-model.cc

@@ -28,6 +28,7 @@ TypeId ConstantVelocityMobilityModel::GetTypeId (void)
 {
   static TypeId tid = TypeId ("ns3::ConstantVelocityMobilityModel")
     .SetParent<MobilityModel> ()
+    .SetGroupName ("Mobility")
     .AddConstructor<ConstantVelocityMobilityModel> ();
   return tid;
 }

src/mobility/model/hierarchical-mobility-model.cc

@@ -29,6 +29,7 @@ HierarchicalMobilityModel::GetTypeId (void)
 {
   static TypeId tid = TypeId ("ns3::HierarchicalMobilityModel")
     .SetParent<MobilityModel> ()
+    .SetGroupName ("Mobility")
     .AddConstructor<HierarchicalMobilityModel> ()
     .AddAttribute ("Child", "The child mobility model.",
                    PointerValue (),

src/mobility/model/mobility-model.cc

@@ -32,6 +32,7 @@ MobilityModel::GetTypeId (void)
 {
   static TypeId tid = TypeId ("ns3::MobilityModel")
     .SetParent<Object> ()
+    .SetGroupName ("Mobility")
     .AddAttribute ("Position", "The current position of the mobility model.",
                    TypeId::ATTR_SET | TypeId::ATTR_GET,
                    VectorValue (Vector (0.0, 0.0, 0.0)),