Use Ice::emptyCurrent instead of Ice::Current() or GlobalIceCurrent

...ce/RobotAPI/components/DebugDrawer/DebugDrawerComponent.h

.../components/KITProstheticHandUnit/KITProstheticHandUnit.h

source/RobotAPI/components/RobotState/RobotStateComponent.h

source/RobotAPI/components/RobotState/SharedRobotServants.h

source/RobotAPI/components/ViewSelection/ViewSelection.h

source/RobotAPI/components/units/ForceTorqueObserver.cpp

source/RobotAPI/components/units/ForceTorqueUnitSimulation.h

source/RobotAPI/components/units/HandUnit.h

source/RobotAPI/components/units/HandUnitSimulation.h

source/RobotAPI/components/units/HapticObserver.h

source/RobotAPI/components/units/HeadIKUnit.h

...botAPI/components/units/InertialMeasurementUnitObserver.h

source/RobotAPI/components/units/KinematicUnit.h

source/RobotAPI/components/units/KinematicUnitObserver.h

source/RobotAPI/components/units/KinematicUnitSimulation.h

source/RobotAPI/components/units/OptoForceUnitObserver.h

source/RobotAPI/components/units/PlatformUnit.h

source/RobotAPI/components/units/PlatformUnitObserver.cpp

source/RobotAPI/components/units/PlatformUnitObserver.h

source/RobotAPI/components/units/PlatformUnitSimulation.h