Fix of project opening bug in Bindings

* Fixed re-opening of project via openProject

Author: DorianGerardin

src/openfluid/utils/Binding.hpp

@@ -576,6 +576,7 @@ class Binding
       try
       {
         init();
+        openfluid::base::RunContextManager::instance()->closeProject();
 
         openfluid::base::IOListener FluidXListener;
 

src/openfluid/utils/tests/Binding_TEST.cpp

@@ -164,6 +164,9 @@ BOOST_AUTO_TEST_CASE(check_datasetsprojects)
   std::cout << "obsIDs: " << TB->getObserversIDs() << std::endl;
 
   openfluid::utils::Binding::destroy(TB);
+
+  // recall
+  BOOST_REQUIRE(openfluid::utils::Binding::openProject(PrjPath.c_str()) != 0);
 }