Option to Hide Bundle if no Indicators are visible

[JodieM]

When using an Indicator Bundle as an exception style bundle, when all the exceptions are cleared (eg Phone, Mobile, Email and Website are entered), and no Indicators are showing anymore, then hide the Bundle.

We can do this now manually with Conditional Display of the Bundle Component but it would be much easier for the Admin when setting up the bundle to have a simple checkbox to "Hide Bundle when Empty".

This should also be visible on the Key, that the bundle is hidden.