Affects: SAREF

Situation: SAREF contains ToggleCommand, which can be used indifferently for on/off, or open/close. However, it would be easier to identify that toggle has different meanings depending on the function

Proposal: improve the description of ToggleCommand, maybe add classes OnOffToggleCommand, OpenCloseToggleCommand, etc., potentially make them sub-classes of ToggleCommand

Status: discussed during SmartM2M-3rd RG Meeting about 2 NWIs SAREFv3 and SAREF Com Framework V2 2019-05-09. Further discussion is needed.