Merge branch 'skills/dev' into 'master'

...omponents/PickAndPlaceComponent/PickAndPlaceComponent.cpp

...skills/components/skill_providers/hand_over/Component.cpp

...lls/components/skill_providers/introduction/Component.cpp

source/armar6/skills/hand_over/skills/HandOver.cpp

source/armar6/skills/hand_over/skills/HandOver.h

...e/armar6/skills/introduction/skills/IntroduceYourself.cpp

source/armar6/skills/introduction/skills/IntroduceYourself.h

...kills/introduction/skills/IntroduceYourselfAtLocation.cpp

.../skills/introduction/skills/IntroduceYourselfAtLocation.h

source/armar6/skills/introduction/skills/NavigationPose.cpp

source/armar6/skills/introduction/skills/NavigationPose.h

...kills/statecharts/Armar6WipingDemoGroup/ObserveWiping.cpp