[Data Explorer][Discover 2.0] Add initial DiscoverChart

[ananzh]

Description

DiscoverChart contains HitsCounter, TimeChartHeader and Histogram in the previous discover_legacy.

Issues Resolved

#4571

Screenshot

Currently chart looks like this. x-axis doesn't show. The calculation of xInterval, xValues, domainStart, domainEnd, domainMin, domainMax, and xDomain in the render method in histogram.tsx determines the range and interval of the x-axis. Currently chartData prop is not providing the correct data because we are using the default size (500) but the time range is normal.

Next step is to continue implementation with state management to interact with top nav, including time range.

Check List

• All tests pass
  • yarn test:jest
  • yarn test:jest_integration
  • yarn test:ftr
• New functionality includes testing.
• New functionality has been documented.
• Update CHANGELOG.md
• Commits are signed per the DCO using --signoff

[codecov]

Codecov Report

Merging #4622 (1321983) into feature/data-explorer (521f306) will decrease coverage by 0.19%.
Report is 2 commits behind head on feature/data-explorer.
The diff coverage is 57.58%.

@@                    Coverage Diff                    @@
##           feature/data-explorer    #4622      +/-   ##
=========================================================
- Coverage                  66.50%   66.32%   -0.19%     
=========================================================
  Files                       3289     3380      +91     
  Lines                      62821    64661    +1840     
  Branches                    9788    10303     +515     
=========================================================
+ Hits                       41782    42886    +1104     
- Misses                     18658    19239     +581     
- Partials                    2381     2536     +155     

Flag	Coverage Δ
Linux_1	34.83% <8.96%> (?)
Linux_2	55.04% <84.33%> (?)
Linux_3	43.92% <43.13%> (?)
Linux_4	35.10% <14.56%> (?)
Windows	?
Windows_1	34.84% <8.96%> (?)
Windows_2	55.01% <84.33%> (?)
Windows_3	43.93% <43.13%> (?)
Windows_4	35.10% <14.56%> (?)

Flags with carried forward coverage won't be shown. Click here to find out more.

Files Changed	Coverage Δ
packages/osd-babel-preset/node_preset.js	100.00% <ø> (ø)
...osd-opensearch-archiver/src/lib/docs/test_stubs.ts	68.75% <ø> (ø)
...ch-archiver/src/lib/indices/create_index_stream.ts	69.76% <ø> (ø)
...ch-archiver/src/lib/indices/delete_index_stream.ts	50.00% <ø> (ø)
...ver/src/lib/indices/opensearch_dashboards_index.ts	0.00% <0.00%> (ø)
packages/osd-ui-shared-deps/theme.ts	41.66% <0.00%> (ø)
src/core/server/legacy/legacy_service.ts	75.38% <ø> (ø)
src/core/server/plugins/plugin_context.ts	45.45% <ø> (ø)
src/core/server/rendering/views/template.tsx	100.00% <ø> (ø)
...server/saved_objects/saved_objects_service.mock.ts	100.00% <ø> (ø)
... and 70 more

... and 214 files with indirect coverage changes

[joshuarrrr]

@ananzh Should this be in draft mode?

[ananzh]

@ananzh Should this be in draft mode?

@joshuarrrr I rebase it based on @ashwin-pc #4678

Now I am able to see chart rendering correctly. The last commit is the chart one.

[ashwin-pc]

Nice job! Looks good to me :)