fix skill observer missing include. Fix RobotStateMemory SegFault if aron in memory is null or not a dict (actually this should never happen. Dont know why this is happening here...)

moved aron test xmls to aron folder, used autoinclude for some. Reenabled support for extends. Added doc string generation.

Periodic merge of armem/dev into master

See merge request ArmarX/RobotAPI!171

Object memory: articulated objects no longer as separate class and instance segments

See merge request ArmarX/RobotAPI!175

Signed-off-by: Rainer Kartmann <rainer.kartmann@kit.edu>

For each objectID (entity name), return only the latest (if there are multiple in different provider segments)

Signed-off-by: Rainer Kartmann <rainer.kartmann@kit.edu>

# Conflicts:
#	source/RobotAPI/libraries/ArmarXObjects/ObjectFinder.cpp
#	source/RobotAPI/libraries/ArmarXObjects/ObjectFinder.h
#	source/RobotAPI/libraries/ArmarXObjects/ObjectInfo.cpp
#	source/RobotAPI/libraries/ArmarXObjects/ObjectInfo.h
#	source/RobotAPI/libraries/ArmarXObjects/test/ArmarXObjectsTest.cpp
#	source/RobotAPI/libraries/armem/CMakeLists.txt
#	source/RobotAPI/libraries/armem_objects/server/instance/Segment.cpp

Resolve "Update ObjectFinder to PriorKnowledgeData"

Closes #59

See merge request ArmarX/RobotAPI!174

Added Debug output to NJointTaskSpaceImpedanceDMPController, fixed wrong buffer and added interface method for setting knull and dnull
Signed-off-by: Christoph Pohl <christoph.pohl@kit.edu>

# Conflicts:
#	source/RobotAPI/libraries/ArmarXObjects/test/ArmarXObjectsTest.cpp