Changes should address timing related failures in the tests.

Fixture teardown functions now ensure the device dummybackends do no
throw on read or write.

activated tests for exception flag propagation with direct connection Device->ApplicationModule (part of #102)

- testInvalidTrigger
- testDeviceReadFailure
- testreadDeviceWithTrigger
- testConsumingFanout
- testDataFlowOnDeviceException

- device1 -> device1DummyBackend.
- device2 -> device2DummyBackend.

Test application structure:

CS +---> threaded fanout +------------------+
             +                              v
             +--------+                   +Device1+
                      |                   |       |
                      v                +--+       |
  CS   <---------+ Module1 <-------+   v          |
              |       ^            +Consuming     |
              |       +---------+    fanout       |
              +----+            +      +          |
                   v         Device2   |          |
  CS   <---------+ Module2             |          |
                                       |          |
  CS   <-------------------------------+          |
                                                  |
                                                  |
  CS   <---------+ Trigger <----------------------+
                      ^
                      |
                      +
                      CS

 - Add missing required dependencies for boost
 - Remove deprecated header. Also not needed on xenial