Organize Tests

[jeremyliweishih]

Organized into the following:

• pipelines_tests
• automl_tests
• objective_tests
• utils_tests

[codecov]

Codecov Report

❗ No coverage uploaded for pull request base (master@a3d3304). Click here to learn what that means.
The diff coverage is n/a.

@@            Coverage Diff            @@
##             master      #91   +/-   ##
=========================================
  Coverage          ?   92.41%           
=========================================
  Files             ?       47           
  Lines             ?     1226           
  Branches          ?        0           
=========================================
  Hits              ?     1133           
  Misses            ?       93           
  Partials          ?        0

Impacted Files	Coverage Δ
evalml/tests/utils_tests/test_problem_types.py	100% <ø> (ø)
evalml/tests/objective_tests/test_lead_scoring.py	100% <ø> (ø)
...l/tests/pipeline_tests/test_logistic_regression.py	100% <ø> (ø)
evalml/tests/automl_tests/test_autoregressor.py	100% <ø> (ø)
evalml/tests/automl_tests/test_autoclassifier.py	100% <ø> (ø)
evalml/tests/pipeline_tests/test_xgboost.py	100% <ø> (ø)
evalml/tests/pipeline_tests/test_rf.py	100% <ø> (ø)
...alml/tests/objective_tests/test_fraud_detection.py	100% <ø> (ø)
evalml/tests/pipeline_tests/test_pipelines.py	93.33% <ø> (ø)
evalml/tests/objective_tests/test_objectives.py	100% <ø> (ø)
... and 2 more

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