Add tests for inspector data pivoting

[scottbell]

Closes #7283

Describe your changes:

• Incoporates @davetsay's PR Provide own renderWhenVisible function since manually creating an object view #7281
• Adds example data source plugin for inspector to use
• Adds e2e test for inspector

All Submissions:

• Have you followed the guidelines in our Contributing document?
• Have you checked to ensure there aren't other open Pull Requests for the same update/change?
• Is this change backwards compatible? For example, developers won't need to change how they are calling the API or how they've extended core plugins such as Tables or Plots.

Author Checklist

• Changes address original issue?
• Tests included and/or updated with changes?
• Command line build passes?
• Has this been smoke tested?
• Testing instructions included in associated issue OR is this a dependency/testcase change?

Reviewer Checklist

• Changes appear to address issue?
• Reviewer has tested changes by following the provided instructions?
• Changes appear not to be breaking changes?
• Appropriate automated tests included?
• Code style and in-line documentation are appropriate?
• Has associated issue been labelled unverified? (only applicable if this PR closes the issue)
• Has associated issue been labelled bug? (only applicable if this PR is for a bug fix)

[deploysentinel]

Current Playwright Test Results Summary

✅ 15 Passing

Run may still be in progress, this comment will be updated as current testing workflow or job completes...

(Last updated on 12/19/2023 10:31:25am UTC)

Run Details

Running Workflow e2e-couchdb on Github Actions

Commit: c39c8aa

Started: 12/19/2023 10:29:42am UTC

View Detailed Build Results

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Current Playwright Test Results Summary

✅ 166 Passing - ⚠️ 4 Flaky

Run may still be in progress, this comment will be updated as current testing workflow or job completes...

(Last updated on 12/19/2023 10:31:25am UTC)

Run Details

Running Job e2e-stable on CircleCI

Commit: c39c8aa

Started: 12/19/2023 01:07:29am UTC

⚠️ Flakes

📄   functional/plugins/plot/logPlot.e2e.spec.js • 1 Flake

Test Case Results

Test Case	Last 7 days Failures	Last 7 days Flakes
Log plot tests Log Plot ticks are functionally correct in regular and log mode and after refresh Retry 1 • Initial Attempt	1.39% (1) 1 / 72 run failed over last 7 days	26.39% (19) 19 / 72 runs flaked over last 7 days

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📄   functional/plugins/notebook/restrictedNotebook.e2e.spec.js • 1 Flake

Test Case Results

Test Case	Last 7 days Failures	Last 7 days Flakes
Restricted Notebook with a page locked and with an embed @addinit Disallows embeds to be deleted if page locked @addinit Retry 1 • Initial Attempt	2.74% (2) 2 / 73 runs failed over last 7 days	36.99% (27) 27 / 73 runs flaked over last 7 days

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📄   functional/plugins/timer/timer.e2e.spec.js • 1 Flake

Test Case Results

Test Case	Last 7 days Failures	Last 7 days Flakes
Timer Can perform actions on the Timer Retry 1 • Initial Attempt	1.43% (1) 1 / 70 run failed over last 7 days	8.57% (6) 6 / 70 runs flaked over last 7 days

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📄   functional/plugins/notebook/notebookSnapshots.e2e.spec.js • 1 Flake

Test Case Results

Test Case	Last 7 days Failures	Last 7 days Flakes
Snapshot image tests Can drop an image onto a notebook and create a new entry Retry 1 • Initial Attempt	1.43% (1) 1 / 70 run failed over last 7 days	55.71% (39) 39 / 70 runs flaked over last 7 days

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View Detailed Build Results

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[codecov]

Codecov Report

Merging #7282 (c39c8aa) into master (0ce36c8) will decrease coverage by 0.12%.
The diff coverage is 52.63%.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #7282      +/-   ##
==========================================
- Coverage   55.79%   55.67%   -0.12%     
==========================================
  Files         655      658       +3     
  Lines       26327    26364      +37     
  Branches     2544     2546       +2     
==========================================
- Hits        14688    14679       -9     
- Misses      10934    10984      +50     
+ Partials      705      701       -4     

Flag	Coverage Δ		*Carryforward flag
e2e-full	41.86% <ø> (+<0.01%)	⬆️	Carriedforward from 0ce36c8
e2e-stable	58.59% <95.23%> (+0.20%)	⬆️
unit	48.66% <2.63%> (-0.38%)	⬇️

*This pull request uses carry forward flags. Click here to find out more.

Files	Coverage Δ
example/dataVisualization/plugin.js	100.00% <100.00%> (ø)
...lization/InspectorDataVisualizationViewProvider.js	100.00% <100.00%> (+100.00%)	⬆️
src/plugins/plugins.js	100.00% <100.00%> (ø)
...tion/ExampleDataVisualizationSourceViewProvider.js	90.90% <90.90%> (ø)
...tion/components/ExampleDataVisualizationSource.vue	0.00% <0.00%> (ø)

... and 13 files with indirect coverage changes

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[scottbell]

To test, please see this ticket:
#7283 (comment)

[davetsay]

The hero we needed, @scottbell