Add TaskRepository view to support for Mylyn tests

To remove the existing Mylyn tests' dependencies on checking for view name strings - add these classes:

org.jboss.reddeer.eclipse/src/org/jboss/reddeer/eclipse/mylyn/tasks/ui/view/TaskRepositoriesView.java

org.jboss.reddeer.eclipse/src/org/jboss/reddeer/eclipse/mylyn/tasks/ui/view/TaskRepository.java

org.jboss.reddeer.eclipse/src/org/jboss/reddeer/eclipse/mylyn/tasks/ui/wizards/NewRepositoryWizard.java

org.jboss.reddeer.eclipse/src/org/jboss/reddeer/eclipse/ui/ide/RepoConnectionDialog.java