Detect base field override configs

Problem/Motivation

If you want to change the label for a content type's title, the related config is not enforced from the node_type_edit_form. Instead, you will need to enforce the associated config by importing from active config.

While this work-around works nicely (hence the "Minor" priority), the "import from active config" isn't well known, and is definitely inconvenient.

Steps to reproduce

1. Create a content type
1. Set the "Title field label" to anything other than "Title"
1. Enforce the content type config
1. Observe that the core.base_field_override.node.<CONTENT-TYPE>.title.yml config has not been written to disk.

Proposed resolution

TBD

Remaining tasks

TBD

User interface changes

TBD