Adds configuration options to `auth.disableLocalStrategy` to allow
customization of how payload treats an auth enabled collection.
Two new properties have been added to `disableLocalStrategy`:
- `enableFields` Include auth fields on the collection even though the
local strategy is disabled. Useful when you do not want the database or
types to vary depending on the auth configuration used.
- `optionalPassword`: makes the password field not required
6104fe5011