Start-of-run EPD tasks and instructions

At the beginning of every run, there are a number of things that need to be done for the EPD.

After the EPD is installed, and before beam, you need to:

Check mapping from "TUFF space" to "StEvent space"
- Mike's instructions
Check connector orientations
- Mike's instructions
Check that you're in the right pre-post
- Rosi's instructions
Compare dark currents to before the shut down
- My instructions

After beam comes, you need to:

Re-confirm pre-post (same as above)
Do timing scan (this needs to be done for physics to be declared!)
- My instructions (note: you need to prepare for this in advance!)
Do bias voltage scan (this can be done after physics is declared)
- My instructions