Add to_df() to convert get_online_feature response to pandas dataframe

[tedhtchang]

Signed-off-by: ted chang htchang@us.ibm.com

What this PR does / why we need it:
Convert online response to Panda dataframe

Which issue(s) this PR fixes:
Fixes #1613

Does this PR introduce a user-facing change?:

Users can convert online feature response to Panda dataframe

[feast-ci-bot]

Hi @tedhtchang. Thanks for your PR.

I'm waiting for a feast-dev member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

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[achals]

/ok-to-test

[codecov-commenter]

Codecov Report

Merging #1623 (77cda24) into master (b32e766) will increase coverage by 0.08%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master    #1623      +/-   ##
==========================================
+ Coverage   83.39%   83.47%   +0.08%     
==========================================
  Files          71       71              
  Lines        6113     6144      +31     
==========================================
+ Hits         5098     5129      +31     
  Misses       1015     1015              

Flag	Coverage Δ
integrationtests	83.39% <100.00%> (+0.08%)	⬆️
unittests	76.57% <100.00%> (+0.12%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
sdk/python/feast/feature_store.py	92.95% <ø> (ø)
sdk/python/feast/online_response.py	97.43% <100.00%> (+0.21%)	⬆️
sdk/python/tests/test_online_retrieval.py	100.00% <100.00%> (ø)

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[woop]

Rerunning the tests now. Codecov has a bug that I tried to fix. You may need to rebase on master. 3b22005

[woop]

Thanks @tedhtchang, this is great!

[woop]

Thanks @tedhtchang

[achals]

/lgtm

[feast-ci-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: achals, tedhtchang, woop

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• OWNERS [achals,woop]

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