Initial support for client and server request tracing.

[ioquatix]

Description

Add support for local and distributed tracing of requests between client & server.

Types of Changes

• New feature.

Testing

• [ ] I added tests for my changes.
• [ ] I tested my changes locally.
• [ ] I tested my changes in staging.
• [ ] I tested my changes in production.

[ioquatix]

This was merged by hand.