Merge branch '145-fluxio-results-and-errors' into 'fluxio/dev'

source/RobotAPI/interface/skills/SkillManagerInterface.ice

source/RobotAPI/libraries/skills/core/CMakeLists.txt

source/RobotAPI/libraries/skills/core/FluxioResult.cpp

source/RobotAPI/libraries/skills/core/FluxioResult.h

source/RobotAPI/libraries/skills/core/error/Exception.h

...otAPI/libraries/skills/core/error/FluxioErrorMessages.cpp

...obotAPI/libraries/skills/core/error/FluxioErrorMessages.h

.../RobotAPI/libraries/skills/core/error/FluxioException.cpp

...ce/RobotAPI/libraries/skills/core/error/FluxioException.h

...ibraries/skills/core/executor/FluxioCompositeExecutor.cpp

.../libraries/skills/core/executor/FluxioCompositeExecutor.h

.../libraries/skills/manager/SkillManagerComponentPlugin.cpp

...PI/libraries/skills/manager/SkillManagerComponentPlugin.h

...raries/skills/manager/SkillManagerComponentPluginUser.cpp

...ibraries/skills/manager/SkillManagerComponentPluginUser.h