Change method visibility in Drupal\restrict_ip\Service\RestrictIpService

Problem/Motivation

The class Drupal\restrict_ip\Service\RestrictIpService has several methods designated as private, which keeps them from being overridden in a subclass when needed.

Proposed resolution

Change the visibility modifier on private methods and members to be protected instead. This will allow subclasses to override as necessary, but will still be hidden from classes that do not extend Drupal\restrict_ip\Service\RestrictIpService

Remaining tasks

Determine if other visibility modifiers on other classes need to be made.

User interface changes

None.

API changes

API changed per proposed resolution.

Data model changes

None.

Release notes snippet

None.