feat: libraries in workers

[haakonflatval-cognite]

Description

Suggestion for setup that allows for libraries in workers.
Unfortunately, it seems like we won't be able to avoid bundling such libraries with Reveal. Currently, it is a bit unclear how exactly the dependency is bundled (whether within the worker itself or outside), and figuring this out is tracked as its own issue. A question has been posted by us on Stackoverflow on tips on how to achieve this, but it has so far seen little attention.

The approach in this PR is to split the Webpack configuration into two paths, one for the index.js entry point, and one for the rest ("peripheral entries"). The index.js bundle has an externals-allow list that ensures it bundles additional dependencies in only that bundle, so we avoid unnecessary duplicates.

This PR should target the point cloud feature branch, but targets another branch (at the time of writing) that is expected to be merged first. We may also discuss whether this should go directly to master, although that will a bit more inconvenient at this point, and seems unnecessary.

Checklist:

Here is a checklist that should completed before merging this given feature.
Any shortcomings from the items below should be explained and detailed within the contents of this PR.

• I am proud of this feature.
• I have performed a self-review of my own code.
• I have manually tested this for different scenarios (different models, formats, devices, browsers).
• I have commented my code in hard-to-understand areas.
• I have made corresponding changes to the public documentation.
• I have added unit and visuals tests to prove that my feature works to the best of my ability.
• I have refactored the code for readability to the best of my ability.
• I have checked that my changes do not introduce regressions in the public documentation.
• I have outlined any known defects / lacking capabilities in the contents of this PR.
• I have listed any remaining work that should follow this PR in the description or jira/miro/etc.
• I have added TSDoc to any public facing changes.
• I have added "developer documentation" in any package README.md that is related / applicable to this PR.
• I have noted down and am currently tracking any technical debt introduced in this PR.
• I have thoroughly thought about the architecture of this implementation.
• I have asked peers to test this feature.

[codecov]

Codecov Report

Merging #2269 (a3cfbb3) into feat/point-cloud-styling (d765a15) will increase coverage by 1.05%.
The diff coverage is 60.06%.

@@                     Coverage Diff                      @@
##           feat/point-cloud-styling    #2269      +/-   ##
============================================================
+ Coverage                     70.37%   71.43%   +1.05%     
============================================================
  Files                           271      271              
  Lines                         11072    11216     +144     
  Branches                       1405     1437      +32     
============================================================
+ Hits                           7792     8012     +220     
+ Misses                         3123     3041      -82     
- Partials                        157      163       +6     

Impacted Files	Coverage Δ
viewer/.eslintrc.js	0.00% <ø> (ø)
viewer/index.ts	0.00% <0.00%> (ø)
viewer/internals.ts	0.00% <0.00%> (ø)
viewer/jest.config.js	0.00% <ø> (ø)
viewer/packages/api/src/migration.ts	0.00% <ø> (ø)
viewer/packages/api/src/public/RevealManager.ts	73.45% <ø> (ø)
...kages/api/src/public/migration/RenderController.ts	100.00% <ø> (ø)
viewer/packages/api/src/public/types.ts	100.00% <ø> (ø)
viewer/packages/api/src/utilities/Spinner.ts	84.37% <ø> (ø)
...ewer/packages/api/src/utilities/ViewStateHelper.ts	59.32% <ø> (ø)
... and 119 more

[github-actions]

📙 Documentation preview is available from
https://cognitedata.github.io/reveal-docs-preview/2269/docs/next/.