Make most service layer methods protected

[jaredcnance]

Currently, almost any customization no matter how small results in a lot of code copying because many methods in the service layer are private. These should be protected so derived classes may use the base class implementations without copying code.

[wayne-o]

I was going to add this exact issue! I’ll try and submit a PR for it over the weekend

[maurei]

This is still an issue for the repository layer