Add 'Read Only' option for Predefined Field

[BenParizek]

Consider User Permission settings where only Admins or certain User Groups can edit the field or perhaps we just default to only allowing Admins to edit, similar to how Logging in as a different user works.

A user reports:

I'm listening for the event triggered by a user being created via a frontend form, then using a value from the user model to perform an api request. This value has to be stored in the usermodel, but ideally it's hidden as it has no other purpose.