* accessors constants created

* accessors dependencies removed from all charts

* Removed accessors dependencies from BE JS for static viz

* Removed accessors references in chart editor

* accessors added to defaultProps

* Remove accessors in tests

* defaultProps removed form static viz components

Static visualizations for area charts. Pursuant to #18676

Combo type and multiple cards for static viz BE. These go into one FE endpoint but are two really separate things in BE. This one conforms to the FE type but the price is that the previous more-dynamic BE types needed to be changed to conform: this will require a refactoring to whack the js-viz types that already exist, when the FE is refactored also.

Static viz for funnel plots. Pursuant to #18676.

BE for progress bar for static viz, sasha put in the FE bits a bit ago

Static viz waterfall needs BE bits. Here are the BE bits. Color and total summation coming...

* Static viz: respect custom X and Y axis labels

* Static viz: allow rendering non-timeseries line charts

* Test fixes 

* Pass along date formatting

* extract and rename some things

* Number formatting

* Update tests

* Improve test validation of svg labels

* Clean up tests

* Move static-viz interface file to custom file

* Avoid using `undefined` array when column formatters not specified

This led to `TypeError: Cannot read property "forEach" from undefined`
errors when no formatters were specified.

* Improve logging of unexpected errors during format compilation

* Log unsupported formatting operators and return a dummy operator fn

* Linting fixes

* Manually ES5-ify code that is to be executed by the Nashorn engine

Nashorn in JDK 8 only supports ES5.1.

* Update Rebuilt shared JS from `yarn build-shared`

* Move formatting foctory fns into an operator-indexed object

* Linter appeasement

* Test that all defined operators are supported in table formatting

* Flow annotations

* Return `null` in stead of `undefined`

Formatting/style changes snuck in.

* `yarn build-shared`

* Use operators from table formatting and not column filters

This creates a new shared javascript file in
`resources/frontend_shared` that will be used by the frontend and the
backend to drive the background color of cells using conditional
formatting features the frontend has.

This uses the JDK 8 included Nashorn javascript engine to eval and
invoke the functions in that shared file.