Add example demo plugins for cross compatibility and functional tests

[manasvinibs]

Description

This change adds 3 Developer example plugins for demonstrating Cross compatibility core service use cases.

yarn start --run-examples

Cross compatibility Core service details - #4903
Adds functional tests for 3 use cases of plugins:

1. Example plugin 1 demonstrate success use case where plugin's required engine plugin dependency satisfies and hence plugin registers itself and show in the side navigation. Also plugins can make API calls on button click and degrade themselves if they find the dependencies are incompatible.
2. Example plugin 2 demonstrate incompatible dependencies where plugin do not register to the side navigation and choose to hide from the menu list.
3. Example plugin 3 demonstrate incompatible dependencies where plugin decides to register in the side nav but will be disabled.

Issues Resolved

#5889

Screenshot

Testing the changes

Check List

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

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 67.00%. Comparing base (55443f7) to head (a889fe2).
Report is 394 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #5896      +/-   ##
==========================================
+ Coverage   66.98%   67.00%   +0.02%     
==========================================
  Files        3304     3305       +1     
  Lines       63569    63574       +5     
  Branches    10153    10153              
==========================================
+ Hits        42580    42597      +17     
+ Misses      18521    18509      -12     
  Partials     2468     2468              

Flag	Coverage Δ
Linux_1	35.21% <ø> (ø)
Linux_2	55.11% <ø> (ø)
Linux_3	43.54% <ø> (+<0.01%)	⬆️
Linux_4	35.20% <ø> (ø)
Windows_1	35.27% <ø> (+0.03%)	⬆️
Windows_2	55.07% <ø> (ø)
Windows_3	43.56% <ø> (+<0.01%)	⬆️
Windows_4	35.20% <ø> (ø)

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

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[BionIT]

Hi @manasvinibs , are we targeting this PR for future releases?

[AMoo-Miki]

These being "examples", we needn't tie it to a release but since it also adds tests, I would love to have it in sooner rather than later.

@manasvinibs I haven't gone through the PR yet but could you please lowercase the file names? A rebase would be great too.

[sejli]

Hey @manasvinibs, I see the 2.17.0 label. Is this still being targeted for 2.17.0?

[ananzh]

Convert to draft due to no progress.