Thresholded building and floor data added to Metrics Spaces API endpoint

Improvement Thresholded buildings and floors (those powered by VergeSense EN1 devices) will now be returned if they have data available for them from our /metrics/spaces API endpoint. Previously, this information was not available from this endpoint but was available from our /metrics/hourly/spaces API endpoint. This update brings these metrics endpoints more consistently in line with each other.