Bug 117965 [DataBinding] Change tests plugin to pre-req examples
This will allow the UI tests in examples to make use of the pojo model
tests/org.eclipse.jface.tests.databinding/src/org/eclipse/jface/tests/databinding/scenarios/TreeScenarios.java
treeDescription.addColumn(Category.class, "name");
		
		
		TreeModelDescription modelDescription = new TreeModelDescription(new Property(catalog, "categories"));
		modelDescription.addChildrenProperty(Category.class, "adventures");
				
		
		getDbc().bind(treeDescription, modelDescription, null);
		
		assertEqualsTreeNode(null, null, SampleData.CATEGORY_TREE);
		
		
		
		Adventure newAdventure = new Adventure();
		newAdventure.setName("new Adventure");
		catalog.getCategories()[0].addAdventure(newAdventure);
		
		assertEqualsTreeNode(null, null, SampleData.CATEGORY_TREE);
		
		
		
		Category newCategory = new Category();				
		newCategory.setName("new Empty Category");
		catalog.addCategory(newCategory);
		
		assertEqualsTreeNode(null, null, SampleData.CATEGORY_TREE);		
	}	
	
	private File createFile(File directory, String name) {
		File f = new File(directory, name);