Add uuid service to core.services.yml

Problem/Motivation

Follow-up to #1969572: Make Uuid a service

The UUID service is registered by \Drupal\Core\CoreServiceProvider::registerUuidService(). This is unnecessarily dynamic.

Proposed resolution

We can register it in core.services.yml and alter the class using the ServiceModifierInterface to use a more efficient class if available. This has the advantage that IDEs can find the service and use it for typehints etc.

Remaining tasks

User interface changes

None.

API changes

I would argue none as nothing should depend on \Drupal\Core\CoreServiceProvider::registerUuidService(). If we feel that removing this is a BC break then we can deprecated it. ServiceProviders are not specifically mentioned in https://www.drupal.org/core/d8-bc-policy but I would argue that this in not API. The existence of a service called 'uuid' that implements UuidInterface is.

Data model changes

None