[WIP]: [Feature]: Histogram Support in Event Analytics with Config Options

[ruchika-narang]

Description

1. Added support for Histogram
2. Added config option for legend
3. Added config option for chart styles
4. Added color theme

Issues Resolved

#643

Check List

• New functionality includes basic histogram chart, config options, snapshot test cases and cypress test cases.
  • All tests pass, including unit test, integration test and doctest
• Commits are signed per the DCO using --signoff

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.
For more information on following Developer Certificate of Origin and signing off your commits, please check here.

[codecov-commenter]

Codecov Report

Merging #743 (6617167) into main (c136532) will increase coverage by 5.61%.
The diff coverage is 59.37%.

@@             Coverage Diff              @@
##               main     #743      +/-   ##
============================================
+ Coverage     52.24%   57.85%   +5.61%     
- Complexity        0      291     +291     
============================================
  Files           213      256      +43     
  Lines          6054     8391    +2337     
  Branches       1567     1821     +254     
============================================
+ Hits           3163     4855    +1692     
- Misses         2856     3360     +504     
- Partials         35      176     +141     

Flag	Coverage Δ
dashboards-observability	52.53% <59.37%> (+0.28%)	⬆️
opensearch-observability	71.87% <ø> (?)

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

Impacted Files	Coverage Δ
...fig_panes/config_controls/config_chart_options.tsx	1.96% <0.00%> (-0.13%)	⬇️
...onfig_panes/config_controls/config_input_field.tsx	33.33% <33.33%> (ø)
...onfig_panes/config_controls/config_color_theme.tsx	46.42% <42.30%> (+1.60%)	⬆️
...nfig_panes/config_controls/config_style_slider.tsx	66.66% <50.00%> (ø)
...ents/visualizations/charts/histogram/histogram.tsx	80.55% <82.14%> (+74.30%)	⬆️
...ashboards-observability/common/constants/shared.ts	100.00% <100.00%> (ø)
.../visualizations/charts/histogram/histogram_type.ts	100.00% <100.00%> (ø)
...pensearch/observability/security/SecurityAccess.kt	0.00% <0.00%> (ø)
...opensearch/observability/model/OperationalPanel.kt	87.09% <0.00%> (ø)
...in/org/opensearch/observability/model/Timestamp.kt	93.02% <0.00%> (ø)
... and 41 more

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update c136532...6617167. Read the comment docs.

[ps48]

@ruchika-narang Is this PR still a work in progress? If not can you please remove the WIP tag from the title.

[ruchika-narang]

@ps48 Yes, this PR is still a work in progress as I am waiting on the confirmation from @mengweieric for the implementation of color theme.

[ruchika-narang]

Closing this PR as histogram will be completely implemented in sprint2. Thanks!!