Ensure that generated python code are considered as module

[khorshuheng]

What this PR does / why we need it:
In https://github.com/gojek/feast/pull/545/files, generated python codes are no longer version controlled. Instead, the code are generated prior to Python unit tests.

However, the publish python sdk script does not include this step. As a result the published artifact does not contain the generated code.

In addition, https://github.com/gojek/feast/blob/master/sdk/python/setup.py#L70 will not be able to find the generated modules, as init.py is not auto generated.

Which issue(s) this PR fixes:
Publish Python SDK should work as intended after this fix.

Does this PR introduce a user-facing change?:

[feast-ci-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: khorshuheng

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[woop]

/lgtm

[feast-ci-bot]

@khorshuheng: Updated the config configmap in namespace default at cluster default using the following files:

• key config.yaml using file .prow/config.yaml

In response to this:

What this PR does / why we need it:
In https://github.com/gojek/feast/pull/545/files, generated python codes are no longer version controlled. Instead, the code are generated prior to Python unit tests.

However, the publish python sdk script does not include this step. As a result the published artifact does not contain the generated code.

In addition, https://github.com/gojek/feast/blob/master/sdk/python/setup.py#L70 will not be able to find the generated modules, as init.py is not auto generated.

Which issue(s) this PR fixes:
Publish Python SDK should work as intended after this fix.

Does this PR introduce a user-facing change?:

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