Add default tooltips to deck.gl viz types

[khtruong]

SUMMARY

Add default tooltips to deck.gl viz types. If the user specifies his or her own custom tooltips, we use those tooltips instead. Note that in geojson and path vizs, the user must specify the extra props. This isn't really that discoverable so we should perhaps think of improving that experience.

BEFORE/AFTER SCREENSHOTS OR ANIMATED GIF

Arc Viz

Grid Viz

Hex Viz

Scatter Plot

TEST PLAN

Manual testing

ADDITIONAL INFORMATION

[ ] Has associated issue:
[ ] Changes UI
[ ] Requires DB Migration. Confirm DB Migration upgrade and downgrade tested.
[x] Introduces new feature or API
[ ] Removes existing feature or API
[ ] Fixes bug
[ ] Refactors code
[ ] Adds test(s)

REVIEWERS

@xtinec @betodealmeida @kristw @williaster

[khtruong]

@vylc Here are a few screenshots of the tooltips.

[vylc]

looks good!
(1) can i get a screenshot of what this looks like when the metric is a decimal value? ideally, inheriting the formatting from the metric or viz config would be great, but that might be too much work given the timeframe. let's just make sure it wraps and doesn't roll out of the tooltip.
(2) Assuming these changes also affect deck.gl polygon, which already has a tooltip, but if there were any enhancements made, let's just make sure that one is consistent, too.
THANKS!