Add DeleteNode to presto_protocol serialization

[ghelmling]

Description

This adds basic support for DeleteNode to presto_protocol serialization. This is required for DELETE statement plans to be passed through to Prestissimo workers.

Motivation and Context

This is the first step in adding DELETE query plan support to Prestissimo/Velox, by supporting basic serialization of the Java com.facebook.presto.spi.plan.DeleteNode class and members. While this includes basic (de)serialization, the generated protocol::DeleteNode class is not yet hooked up to any connectors. Conversion to Velox Hive Connector types will follow in a subsequent PR.

Impact

DeleteNode has been added to presto_protocol so it is now available for use by Prestissimo connector implementations.

Test Plan

A basic test, DeleteTest.cpp, is included, which validates round-trip serialization of a sample DeleteNode representation.

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Release Notes

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[aditi-pandit]

@ghelmling : Thanks for this change.

Quick question : Do you have a design for this work ? Would be great to read about it.

Please can you separate the velox changes out of this PR. We typically push PRs that only "Advance Velox" e.g. #24135