wip: changed constructor of ExceptionHandlingDecorator to have a VariableNetworkNode as argument instead of a bunch of details

wip ExceptionHandlingSpec: C.2 ExceptionHandlingDecorator is throwing…

It is now inferred from the TransferType in doPostRead of the
MetaDataPropagatingRegisterAccessor, if the owning module's
version number gets updated.

Rearranged processing of fanouts and their consuming nodes. A list of
consuming nodes and implementations is passed to the fanout constructors,
so the nodes don't have to added later. This resolves conflicts in the
order in which accessors are decorated and added to the fanouts.

FanOut constructors could still use refactoring.

- removed ExceptionHandlingDecorator::setOwnerValidity()

- removed DeviceModule::waitForRecovery()
- ExceptionHandlingDecorator is throwing to skip transfers

wip ExceptionHandlingSpec: C.2 ExceptionHandlingDecorator is throwing to implement skipping a transfer

Ongoing refactoring. Consuming fanout works again.

This reverts commit d025bb5a.

This reverts commit b7fb1f68.

ExceptionHandling Spec: Changed specification for boost::numeric::bad…

- doPostRead() only updates user buffer when it should
- doPostRead() sets data validity and version number
- write() returns false (no data lost), because dropping the data is intentional
- implemented interrupt()