add SQL/PPL transport request/response models#155

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zhongnansu wants to merge 2 commits intoopensearch-project:mainfrom zhongnansu:sql-transport-api

+646-1

Commits on May 19, 2022

add SQL/PPL transport request/response models and send SQL/PPL interfaces
zhongnansu
committed

Commits on May 24, 2022

refactor transportPPLQueryRequest
zhongnansu
committed