This closes #29.

Manual check to be used temporarily.

These additions cover the behavior described in #29.

  - Rename, this does not test the intial value propagation
  - Remove debug output

It was agreed to never do this. What strings are for display only and should not be analysed, neither by tests nor by applications.

- All modules have names
- "DEVICE" tag removed because it is not used any more

Create unique temporary directories.

testDeviceInitialisationHandler: convert globals used by different threads into atomics to avoid data races (tsan was complaining)

	firt test D9 b for ThreadedFanOut

	Write tests for initial value initial value specification D.8

- Also removed race conditions in the test.

Print test name.

- use DummyRegister::getRawAccessor for access to backend registers.
- read and write convenience methods for rawAccessor.

Introduced UpdateModule which provides a Process Variable connected to
ExceptionDummy register  "REG1"