CameraView: make GL header optional for OSX
CameraView: make GL header optional for OSX

dcarpy/apm_planner,sutherlandm/apm_planner,mirkix/apm_planner,mrpilot2/apm_planner,kellyschrock/apm_planner,mrpilot2/apm_planner,xros/apm_planner,sutherlandm/apm_planner,xros/apm_planner,sutherlandm/apm_planner,kellyschrock/apm_planner,mirkix/apm_planner,dcarpy/apm_planner,kellyschrock/apm_planner,mirkix/apm_planner,mrpilot2/apm_planner,kellyschrock/apm_planner,diydrones/apm_planner,xros/apm_planner,dcarpy/apm_planner,kellyschrock/apm_planner,dcarpy/apm_planner,kellyschrock/apm_planner,diydrones/apm_planner,sutherlandm/apm_planner,dcarpy/apm_planner,sutherlandm/apm_planner,sutherlandm/apm_planner,diydrones/apm_planner,mrpilot2/apm_planner,xros/apm_planner,mrpilot2/apm_planner,xros/apm_planner,dcarpy/apm_planner,mirkix/apm_planner,mirkix/apm_planner,diydrones/apm_planner,diydrones/apm_planner,xros/apm_planner,mrpilot2/apm_planner,diydrones/apm_planner,mirkix/apm_planner