cmd/scollector: change speed metadata to be a pointer and default to zero when not available
cmd/scollector: change speed metadata to be a pointer and default to zero when not available

vimeo/bosun,vimeo/bosun,Dieterbe/bosun,Dieterbe/bosun,Dieterbe/bosun,vimeo/bosun,vimeo/bosun,Dieterbe/bosun