Unrecognized properties with structural content should be recursively consumed

[ceharris]

The ViewKeys.IGNORE_UNKNOWN_PROPERTIES option can be used to ignore unknown properties when applying a view. This works fine for properties with scalar values. However, if the property has a value that is an object or an array, the BEGIN event is ignored, but the subsequent events leading up to the corresponding END are not properly ignored.

When an unrecognized property with an object or array value is to be ignored, the applicator must recursively consume events until the corresponding END event is consumed.