Add sentiment class

[rohitvinnakota-codecov]

This PR adds a class to calculate sentiment.

[codecov-notifications]

Codecov Report

Attention: Patch coverage is 0% with 14 lines in your changes missing coverage. Please review.

✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
utils/sentiment.py	0.00%	14 Missing ⚠️

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[codecov]

Codecov Report

Attention: Patch coverage is 0% with 14 lines in your changes missing coverage. Please review.

Project coverage is 96.24%. Comparing base (8945e37) to head (c74cf2f).
Report is 88 commits behind head on main.

✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
utils/sentiment.py	0.00%	14 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #888      +/-   ##
==========================================
- Coverage   96.31%   96.24%   -0.08%     
==========================================
  Files         823      824       +1     
  Lines       19079    19093      +14     
==========================================
  Hits        18376    18376              
- Misses        703      717      +14     

Flag	Coverage Δ
unit	92.58% <0.00%> (-0.08%)	⬇️
unit-latest-uploader	92.58% <0.00%> (-0.08%)	⬇️

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