feat: implement flow translation addition

[scolladon]

What does this pull request contain?

---

• Added (for new features).
• Changed (for changes in existing functionality).
• Deprecated (for soon-to-be removed features).
• Removed (for now removed features).
• Fixed (for any bug fixes).
• Security (for vulnerability fixes).

Explain your changes

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Implement a new type handler for flow
When a flow is added or changed if it is referenced in a translation file then the translation file is added in the package and in the output directory as well

Does this close any currently open issues?

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closes #321

• Jest test added to check the fix is applied.

Any particular element that can be tested locally

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Use the branch issue/321 of the playground

[codecov]

Codecov Report

Merging #322 (e962179) into main (5e2cb9a) will not change coverage.
The diff coverage is 100.00%.

@@            Coverage Diff            @@
##              main      #322   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           23        29    +6     
  Lines          633       730   +97     
=========================================
+ Hits           633       730   +97     

Impacted Files	Coverage Δ
src/main.js	100.00% <100.00%> (ø)
src/post-processor/baseProcessor.js	100.00% <100.00%> (ø)
src/post-processor/flowTranslationProcessor.js	100.00% <100.00%> (ø)
src/post-processor/packageGenerator.js	100.00% <100.00%> (ø)
src/post-processor/postProcessorManager.js	100.00% <100.00%> (ø)
src/service/botHandler.js	100.00% <100.00%> (ø)
src/service/customObjectHandler.js	100.00% <100.00%> (ø)
src/service/inFileHandler.js	100.00% <100.00%> (ø)
src/service/inFolderHandler.js	100.00% <100.00%> (ø)
src/service/inResourceHandler.js	100.00% <100.00%> (ø)
... and 7 more

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[codeclimate]

Code Climate has analyzed commit e962179 and detected 0 issues on this pull request.

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[mehdicherf]

Nice new feature!