Allow "Related campaign" to be passed through when creating historical events

[Sampfluger88]

Goal

User story
As a GTM Architect,
I want to pass the related campaign name when creating a historical event
so that I can set the attribution fields using that data.

For help creating a user story, see "Writing a good user story" in the website handbook.

How?

• Related campaign field: https://fleetdm.my.salesforce-setup.com/lightning/setup/ObjectManager/01IUG000000MxXh/FieldsAndRelationships/00NUG000001gs53/view

Context

[fleet-release]

Campaign names in flight,
Data flows in unseen streams,
Security's light.