Make Shunting Yard auditable

[ddcprg]

As a Shunting Yard user/operator
I'd like to keep track of how event where processed by the service
So I can easily track outputs generated inputs and any events that may have occurred during the processing

Overview

Audit-ability is a must-have in any system. Shunting Yard must be able to be audited in oder to allow for quality improvement and correctness verification.

This issue probably needs to be split up into more fined grained tasks.