Standardize names of featurizer components

[bchen1116]

changing the names of Datetime and NL featurization components to match URL and email featurizers

[codecov]

Codecov Report

Merging #3192 (97d06c7) into main (02c2021) will not change coverage.
The diff coverage is 100.0%.

@@          Coverage Diff          @@
##            main   #3192   +/-   ##
=====================================
  Coverage   99.7%   99.7%           
=====================================
  Files        326     326           
  Lines      31135   31135           
=====================================
  Hits       31039   31039           
  Misses        96      96           

Impacted Files	Coverage Δ
evalml/tests/component_tests/test_utils.py	95.7% <ø> (ø)
evalml/tests/conftest.py	95.9% <ø> (ø)
...s/prediction_explanations_tests/test_explainers.py	100.0% <ø> (ø)
.../prediction_explanations_tests/test_force_plots.py	100.0% <ø> (ø)
...l_understanding_tests/test_feature_explanations.py	100.0% <ø> (ø)
...lml/tests/model_understanding_tests/test_graphs.py	100.0% <ø> (ø)
...del_understanding_tests/test_partial_dependence.py	100.0% <ø> (ø)
...understanding_tests/test_permutation_importance.py	100.0% <ø> (ø)
...valml/tests/pipeline_tests/test_component_graph.py	99.9% <ø> (ø)
.../transformers/preprocessing/datetime_featurizer.py	100.0% <100.0%> (ø)
... and 4 more

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[jeremyliweishih]

Looks great! There could be two more changes missing though!

[freddyaboulton]

Looks good to me! Thank you @bchen1116 (and good eye @jeremyliweishih )

[chukarsten]

Looks good! Thanks Bryan!