fixed loaded config + some cleaning

includes/beamer.h

includes/beamerProjection.h

includes/camera.h

includes/controller.h

includes/sandbox.h

src/core/components/beamer.cpp

src/core/components/beamerProjection.cpp

src/core/components/camera.cpp

src/core/controller.cpp

src/core/tools/sandboxConfig.cpp

src/sandbox.cpp

src/sandboxSetup.cpp