Add Oversampler components to EvalML

[bchen1116]

fix #2014

Design doc here

Example code to show the oversampler works in pipelines:

[codecov]

Codecov Report

Merging #2079 (7a3a7af) into main (027f877) will increase coverage by 0.1%.
The diff coverage is 100.0%.

@@            Coverage Diff            @@
##             main    #2079     +/-   ##
=========================================
+ Coverage   100.0%   100.0%   +0.1%     
=========================================
  Files         293      295      +2     
  Lines       24056    24362    +306     
=========================================
+ Hits        24046    24352    +306     
  Misses         10       10             

Impacted Files	Coverage Δ
evalml/pipelines/components/__init__.py	100.0% <ø> (ø)
...alml/pipelines/components/transformers/__init__.py	100.0% <100.0%> (ø)
...lines/components/transformers/samplers/__init__.py	100.0% <100.0%> (ø)
...s/components/transformers/samplers/base_sampler.py	100.0% <100.0%> (ø)
...s/components/transformers/samplers/oversamplers.py	100.0% <100.0%> (ø)
evalml/pipelines/components/utils.py	100.0% <100.0%> (ø)
evalml/tests/component_tests/test_components.py	100.0% <100.0%> (ø)
evalml/tests/component_tests/test_oversamplers.py	100.0% <100.0%> (ø)
evalml/tests/component_tests/test_utils.py	100.0% <100.0%> (ø)
evalml/tests/pipeline_tests/test_pipelines.py	100.0% <100.0%> (ø)
... and 2 more

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[bchen1116]

Filed an issue to track incorporating dictionary to oversamplers here. I will remove support for accepting dictionary input for now!

[chukarsten]

Good changes! Good work!

[freddyaboulton]

@bchen1116 I think this is fantastic! Thanks for making the changes 😄

Addressed the comments