Reduce enums to below 32 (others commented).  Improve comments.
Reduce enums to below 32 (others commented).  Improve comments.

vermar/open-sensor-platform,krishnanMurali/open-sensor-platform,ismailhkose/open-sensor-platform,ismailhkose/open-sensor-platform,krishnanMurali/open-sensor-platform,sensorplatforms/open-sensor-platform,vermar/open-sensor-platform,sensorplatforms/open-sensor-platform,vermar/open-sensor-platform,sensorplatforms/open-sensor-platform