Added a refresh local at the end

In case of creating projects based on samples the code is copied at the
level of the os
To have eclipse see the files a refres is needed

Author: jantje

io.sloeber.core/src/io/sloeber/core/api/BoardDescriptor.java

@@ -240,6 +240,7 @@ public IProject createProject(String projectName, URI projectURI,
 		CoreModel.getDefault().getProjectDescriptionManager().setProjectDescription(projectHandle, prjCDesc, true,
 				null);
 		projectHandle.setDescription(desc, new NullProgressMonitor());
+		projectHandle.refreshLocal(IResource.DEPTH_INFINITE, null);
 		monitor.done();
 		return projectHandle;
 	}