* updated architectural concept os subview ** added base class BaseConfigurationView ** updated interface ConfigurationGroup * updated message strings for new pollign configurations * implemented new vaadin compontent DurationField (extends DateTimeField) TODO: * update positioning of DurationFields * update validation of user input, espacilly against min and max value Signed-off-by: Nonnenmacher Fabian <fabian.nonnenmacher@bosch-si.com>