[lens] Support stacking in xy visualization#40546

Merged

wylieconlon merged 4 commits intoelastic:feature/lensfrom wylieconlon:lens/stacked

Jul 10, 2019

+476-127

Commits on Jul 8, 2019

[lens] Support stacking in xy visualization
wylieconlon
committed

Commits on Jul 9, 2019

Commits on Jul 10, 2019

Fix type error
wylieconlon
committed