Implement SanitizedBridgeExtraInfoDescriptor class that encapsulates the sanitizing logic for bridge extra-info descriptors
Create the two classes SanitizedBridgeExtraInfoDescriptor
and SanitizedBridgeExtraInfoDescriptorTest
.
SanitizedBridgeExtraInfoDescriptor
should extend BridgeExtraInfoDescriptor
all else analogously to legacy/trac#20549 (moved).