VictoryTooltip:Constrain To Visible Area

Build 1414 on 2882-victoryline-labels-not-hidden-inside-victoryzoomcontainer
1200px
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Baseline History
Build 141405e41e3
Current build. There are unaccepted changes, so build 1351 is still the baseline.
Build 11383c01eb0
Accepted by Charlie Brown.
Commenting is disabled because there's a newer build on this branch