fixing build by adding headers in other libs

.../armem/client/ExampleMemoryClient/ExampleMemoryClient.cpp

...llManagerPlugin/aronTreeWidget/widgets/EditMatrixWidget.h

...illManagerPlugin/aronTreeWidget/widgets/IntEnumWidget.cpp

...ManagerPlugin/aronTreeWidget/widgets/QuaternionWidget.cpp

...llManagerPlugin/aronTreeWidget/widgets/QuaternionWidget.h

...API/libraries/armem/client/util/MemoryToDebugObserver.cpp

...ce/RobotAPI/libraries/armem/server/ltm/EntityInstance.cpp

...ce/RobotAPI/libraries/armem/server/ltm/EntitySnapshot.cpp

...e/RobotAPI/libraries/armem/server/ltm/detail/MemoryBase.h

...libraries/armem/server/ltm/detail/mixins/util/mongodb.cpp

...tAPI/libraries/armem/server/ltm/processors/Processors.cpp

...aries/armem_grasping/client/KnownGraspCandidateReader.cpp

source/RobotAPI/libraries/armem_gui/MemoryViewer.cpp

source/RobotAPI/libraries/armem_gui/disk/ControlWidget.cpp

source/RobotAPI/libraries/armem_locations/client/Reader.cpp

...cts/client/articulated_object/ArticulatedObjectWriter.cpp

...raries/armem_objects/client/articulated_object/Reader.cpp

...botAPI/libraries/armem_robot_state/server/common/Visu.cpp

source/RobotAPI/libraries/aron/common/rw/eigen.h

...otAPI/libraries/aron/converter/opencv/OpenCVConverter.cpp