Tracking Outer Barrel Stave Implementation

This [talk](https://indico.bnl.gov/event/25167/contributions/97894/attachments/57990/99584/Tracking%20simulation%20OB.pdf) details the work that has been done to test the impact of implementation of staves on the tracking outer barrel. But it needs to be ported from [external repo](https://github.com/Tunat66/epicUK/tree/UK_Contribution) to main epic repo. We also need to check if this design change has been communicated to project.