Feature/elections tests

[kadensu]

Partially completes election testing #177.

• Renamed "subtest" files to "utils"

• Added and restructured util functions for better reusability

• Moved data objects to data files

• GET test for /elections/vote/(.*)

• PUT test for /elections/vote/(.*)

• DELETE test for /elections/vote/(.*)

• GET test for /elections/election/(.*)/count

• DELETE test for /elections/election/(.)/candidate/(.)

• POST test for /elections/election/(.*)/ballot

• GET test for /election/{election_id}/ballot

• GET test for /election/{election_id}/ballot/{vote_id}

• DELETE test for /election/{election_id}/ballot/{vote_id}

[codecov]

Codecov Report

Merging #178 into develop will increase coverage by 4.05%.
The diff coverage is n/a.

@@             Coverage Diff             @@
##           develop     #178      +/-   ##
===========================================
+ Coverage    48.35%   52.40%   +4.05%     
===========================================
  Files           29       29              
  Lines         3032     3032              
===========================================
+ Hits          1466     1589     +123     
+ Misses        1566     1443     -123     

Impacted Files	Coverage Δ
src/aswwu/base_handlers.py	81.04% <0.00%> (+1.30%)	⬆️
src/aswwu/exceptions.py	78.26% <0.00%> (+4.34%)	⬆️
src/aswwu/models/elections.py	97.56% <0.00%> (+4.87%)	⬆️
src/aswwu/alchemy_new/elections.py	70.62% <0.00%> (+8.75%)	⬆️
src/aswwu/validators/elections.py	64.00% <0.00%> (+9.33%)	⬆️
src/aswwu/route_handlers/elections.py	91.34% <0.00%> (+28.95%)	⬆️

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