Plan checker sessionPass ConnectorSession to PlanChecker

[rschlussel]

Description

Pass ConnectorSession to PlanChecker and add ConnectorSession.forConnectorId() method.

Motivation and Context

We have a planchecker that calls out to get connector metadata for the tablescan, and so we need to pass the connector session through to those calls

Impact

Updates the plan checker SPI

Test Plan

CI

Contributor checklist

• Please make sure your submission complies with our contributing guide, in particular code style and commit standards.
• PR description addresses the issue accurately and concisely. If the change is non-trivial, a GitHub Issue is referenced.
• Documented new properties (with its default value), SQL syntax, functions, or other functionality.
• If release notes are required, they follow the release notes guidelines.
• Adequate tests were added if applicable.
• CI passed.

Release Notes

Please follow release notes guidelines and fill in the release notes below.

== RELEASE NOTES ==

SPI Changes
* Add ConnectorSession as an argument to PlanChecker.validate and PlanChecker.validateFragment