Infer schema of PyArrow table directly

[voonhous]

• Added support to infer schema of PyArrow table directly (All types supported except bool_list_val)
• Removed schema inference with intermediate pandas DataFrame
• Added confluent-kafka support to improve throughput of FeatureRows being pushed into Kafka
• Added a series of optimizations to reduce memory footprint

[voonhous]

/retest

[voonhous]

/retest

[voonhous]

/retest

[voonhous]

/retest

[woop]

/lgtm

[woop]

/approved

[feast-ci-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: voonhous, woop

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[feast-ci-bot]

@voonhous: 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:

• Added support to infer schema of PyArrow table directly (All types supported except bool_list_val)
• Removed schema inference with intermediate pandas DataFrame
• Added confluent-kafka support to improve throughput of FeatureRows being pushed into Kafka
• Added a series of optimizations to reduce memory footprint

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