[unstable] Add File size Config

[Hmnt39]

This PR moves the FileSizeConfig to the unstable configuration.
Remaining config are already moved to unstable with Statestore and Metrics PR.

[einarmo]

Doesn't the new unstable config use pydantic? I don't think this will work.

[codecov]

Codecov Report

❌ Patch coverage is 75.71429% with 17 lines in your changes missing coverage. Please review.
✅ Project coverage is 80.59%. Comparing base (67ffc88) to head (c2314a7).
⚠️ Report is 1 commits behind head on master.

Files with missing lines	Patch %	Lines
...te/extractorutils/unstable/configuration/models.py	75.71%	17 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #476      +/-   ##
==========================================
- Coverage   80.67%   80.59%   -0.09%     
==========================================
  Files          43       43              
  Lines        4124     4194      +70     
==========================================
+ Hits         3327     3380      +53     
- Misses        797      814      +17     

Files with missing lines	Coverage Δ
...te/extractorutils/unstable/configuration/models.py	83.72% <75.71%> (-2.05%)	⬇️

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[Hmnt39]

Doesn't the new unstable config use pydantic? I don't think this will work.

Make changes according to pydantic.

[einarmo]

Could you add tests for using a pydantic field as well? I.e. that having a default works as expected. Also, could you write a test that verifies the equality logic? I.e. FileSizeConfig("2000MB") == FileSizeConfig("2GB")

[Hmnt39]

Could you add tests for using a pydantic field as well? I.e. that having a default works as expected. Also, could you write a test that verifies the equality logic? I.e. FileSizeConfig("2000MB") == FileSizeConfig("2GB")

Added more test cases to check the defaults and equality logic.

[einarmo]

As a final note, you should mention in the PR description that this migrates an existing class to use pydantic, and link to the original config type.

[frxstrem]

🦄