Use flask blueprints

[Teester]

Using Flask Blueprints will make it easier to manage different api endpoints in the future.

[sonarqubecloud]

Quality Gate failed

Failed conditions
30.8% Duplication on New Code (required ≤ 3%)

See analysis details on SonarQube Cloud

[codecov]

Codecov Report

❌ Patch coverage is 86.88525% with 8 lines in your changes missing coverage. Please review.
✅ Project coverage is 92.32%. Comparing base (67a5c46) to head (a431cff).
⚠️ Report is 2 commits behind head on master.
✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
entityshape/api_v1_blueprint.py	82.60%	4 Missing ⚠️
entityshape/api_v2_blueprint.py	87.87%	4 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master      #81      +/-   ##
==========================================
+ Coverage   91.79%   92.32%   +0.53%     
==========================================
  Files          15       17       +2     
  Lines        1438     1434       -4     
==========================================
+ Hits         1320     1324       +4     
+ Misses        118      110       -8     

Files with missing lines	Coverage Δ
entityshape/app.py	90.00% <100.00%> (+14.28%)	⬆️
entityshape/api_v1_blueprint.py	82.60% <82.60%> (ø)
entityshape/api_v2_blueprint.py	87.87% <87.87%> (ø)

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