Igor Motov 667e1a5225
Add Boxplot Aggregation (#52174)
Adds a `boxplot` aggregation that calculates min, max, medium and the first
and the third quartiles of the given data set.

Closes #33112
2020-02-11 09:38:17 -05:00
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2020-02-11 09:38:17 -05:00