Make dartsim/World.hh header private (#551)

* Make dartsim/World.hh header private

Signed-off-by: Jose Luis Rivero <jrivero@osrfoundation.org>

* Remove install CMake code

Signed-off-by: Jose Luis Rivero <jrivero@osrfoundation.org>

---------

Signed-off-by: Jose Luis Rivero <jrivero@osrfoundation.org>

Author: j-rivero

dartsim/CMakeLists.txt

@@ -11,10 +11,6 @@ if (MSVC)
   target_compile_options(${features} INTERFACE "/permissive-")
 endif()
 
-install(
-  DIRECTORY include/
-  DESTINATION "${GZ_INCLUDE_INSTALL_DIR_FULL}")
-
 gz_get_libsources_and_unittests(sources test_sources)
 
 # TODO(MXG): Think about a gz_add_plugin(~) macro for gz-cmake

dartsim/src/AddedMassFeatures_TEST.cc

@@ -32,14 +32,15 @@
 #include <gz/physics/sdf/ConstructLink.hh>
 #include <gz/physics/sdf/ConstructModel.hh>
 #include <gz/physics/sdf/ConstructWorld.hh>
-#include <gz/physics/dartsim/World.hh>
 
 #include <sdf/Link.hh>
 #include <sdf/Root.hh>
 #include <sdf/World.hh>
 
 #include <test/Utils.hh>
 
+#include "World.hh"
+
 struct TestFeatureList : gz::physics::FeatureList<
     gz::physics::GetEntities,
     gz::physics::GetBasicJointState,

dartsim/src/CustomFeatures.hh

@@ -20,9 +20,8 @@
 
 #include <gz/physics/Implements.hh>
 
-#include <gz/physics/dartsim/World.hh>
-
 #include "Base.hh"
+#include "World.hh"
 
 namespace gz {
 namespace physics {

dartsim/src/SDFFeatures_TEST.cc

@@ -43,8 +43,6 @@
 #include <gz/physics/sdf/ConstructNestedModel.hh>
 #include <gz/physics/sdf/ConstructWorld.hh>
 
-#include <gz/physics/dartsim/World.hh>
-
 #include <sdf/Collision.hh>
 #include <sdf/Joint.hh>
 #include <sdf/JointAxis.hh>
@@ -54,6 +52,8 @@
 
 #include <test/Utils.hh>
 
+#include "World.hh"
+
 using namespace gz;
 
 struct TestFeatureList : physics::FeatureList<