Make order alphabetical

source/RobotAPI/libraries/CMakeLists.txt

-add_subdirectory(core)
 add_subdirectory(ArmarXEtherCAT)
-add_subdirectory(KITGripperEtherCAT)
-add_subdirectory(widgets)
-add_subdirectory(SimpleJsonLogger)
-add_subdirectory(RobotAPIVariantWidget)
-add_subdirectory(RobotAPINJointControllers)
-add_subdirectory(DMPController)
+add_subdirectory(ControllerUIUtility)
+add_subdirectory(core)
+add_subdirectory(DebugDrawerConfigWidget)
 # disabled until Mathlib include is fixed...
+add_subdirectory(DMPController)
 add_subdirectory(DSControllers)
+add_subdirectory(KITGripperEtherCAT)
+add_subdirectory(RobotAPIComponentPlugins)
+add_subdirectory(RobotAPINJointControllers)
+add_subdirectory(RobotAPIVariantWidget)
 add_subdirectory(RobotStatechartHelpers)
-add_subdirectory(ControllerUIUtility)
-add_subdirectory(DebugDrawerConfigWidget)
-
-add_subdirectory(RobotAPIComponentPlugins)
\ No newline at end of file
+add_subdirectory(SimpleJsonLogger)
+add_subdirectory(widgets)