adjust statistics for the temporal interval series names

[alee]

In the statistics box

Currently if you apply a z-score transformation + smoothing it sets the "Original" stats line to be the z-score transformation stats and the "Transformed" stats line to be the smoothed z-score stats.

Instead,

• Original statistics should always be for to the original data (not transformed)
• Z-Score should be always be labeled "Transformed"
• add additional "Smoothed" series for the smoothed mean / median

[kintigh]

I think we decided Transformed should be labeled transformed but be for the Z Score transformed data and below that add a statistics line for "Smoothed", which is the smoothed Z score data. That way the terminology is consistent

[alee]

implemented in 6edbac59b92f0d99b51721be7012387117345e21 though the original statistics need to be sent back and reported via changes to skope-api https://github.com/openskope/skope-api/issues/16