Implements sending exception attributes for log events

[jaffinito]

Description

Updates our RecordLogMessage api to accept a Func to get the exception data attached to the message, if present. All existing frameworks have been updated to capture this information.

• Captures message, stack, and class of the exception
• Stack is capture using our StackTraces.ScrubAndTruncate system so it will report similar results compared to error traces. This also enabled it to dig into the inner exceptions and pull together a complete stack.
• Wiremodel updated to add new values. Stack is stored as a string, not string[], here since that is what the spec is asking for.
• Unit tests (AgentWrapperApiTests) have been added.
• Integration tests and our LoggingAdapter have been updated to take an exception for "Error" level logs instead of a string.
• Integration test Assertions have been updated to check for for exception data in log lines, but only for "Error" level.

Author Checklist

• Unit tests, Integration tests, and Unbounded tests completed
• Performance testing completed with satisfactory results (if required)
• Agent Changelog or Lambda Agent changelog updated

Reviewer Checklist

• Perform code review
• Pull request was adequately tested (new/existing tests, performance tests)
• Review Changelog

[JcolemanNR]

Awesome, this will add a lot of value for customers calling log methods and supplying exceptions!

In addition to my inline comments requesting changes, I think we should add unit and integration test coverage for log events with a null/empty message and an exception per the spec.

[JcolemanNR]

I believe the logic for when to forward log events still needs some changes to be conformant to the specifications.

[JcolemanNR]

These changes look good to me!

[nr-ahemsath]

Changes look good to me. Looks good in the UI too. 👍