* docs: [demo][connection] add ConfigureCORS story for testing CORS
* docs: [demo][ConfigureCORS] better instructions
* feat: [chart] add mvp DataProvider component
* docs: better CORS story, update webpack for @babel/polyfill
* docs: [chart] add DataProvider story with WordCloudPlugin
* docs: [chart] add DataProvider deets to Readme
* test(chart): move SuperChart.test.jsx => .tsx and instead use @ts-ignore
* fix(connection): point interface.request to client.request
* feat(chart): re-write DataProvider as ChartDataProvider
* docs(demo): re-write LegacyWordCloudStories => ChartDataProviderStories
* refactor(chart): use IDENTITY as ChartPlugin buildQuery default
* feat(chart): support legacy + v1 loadQueryData endpoints in ChartClient
* docs(demo): add sankey + sunburst plugins to ChartDataProvider story
* style(chart): run prettier on SuperChart
* feat(chart): export QueryData type from models/ChartProps
* feat(chart): export Metrics and BaseFormData from types/ChartFormData
* feat(chart): add request option overrides in ChartDataProvider
* fix(chart): use Partial<> for ChartClient request option overrides
* test(chart): add ChartDataProvider tests
* build: include demo pkg in type script
* build: move storybook/mocks to test/fixtures
* build: move json-bigint TS declaration to root
* test(chart): clean up ChartDataProvider test TS
* chore(chart): lint fix SuperChart
* fix(chart): set ChartPlugin.buildQuery default back to undefined
* test(connection): fix expected Client.get call count
* test(chart): fix ChartClient tests and add test for legacy API
* fix(chart): uninitialized typo, change fetching => loading
* docs(chart): update README to final ChartDataProvider API
* docs(chart): fix typo
* test(chart): get ChartDataProvider to one hundo
* feat(chart): add and export more meaningful Datasource type
* feat(chart): use Datasource type in ChartClient
