Add service aliases for applicable services

Closes #3477672

entity_hierarchy.services.yml

@@ -2,14 +2,17 @@ services:
   entity_hierarchy.nested_set_storage_factory:
     class: Drupal\entity_hierarchy\Storage\NestedSetStorageFactory
     arguments: ['@dbal_connection', '@database', '@entity_hierarchy.logger']
+  Drupal\entity_hierarchy\Storage\NestedSetStorageFactory: '@entity_hierarchy.nested_set_storage_factory'
   entity_hierarchy.logger:
     parent: logger.channel_base
     arguments: ['entity_hierarchy']
   entity_hierarchy.nested_set_node_factory:
     class: Drupal\entity_hierarchy\Storage\NestedSetNodeKeyFactory
+  Drupal\entity_hierarchy\Storage\NestedSetNodeKeyFactory: '@entity_hierarchy.nested_set_node_factory'
   entity_hierarchy.information.parent_candidate:
     class: Drupal\entity_hierarchy\Information\ParentCandidate
     arguments: ['@entity_field.manager', '@entity_type.bundle.info']
+  Drupal\entity_hierarchy\Information\ParentCandidate: '@entity_hierarchy.information.parent_candidate'
   access_check.entity_hierarchy.has_fields:
     class: Drupal\entity_hierarchy\Routing\ReorderChildrenAccess
     arguments: ['@entity_hierarchy.information.parent_candidate', '@entity_type.manager']
@@ -18,6 +21,8 @@ services:
   entity_hierarchy.entity_tree_node_mapper:
     class: Drupal\entity_hierarchy\Storage\EntityTreeNodeMapper
     arguments: ['@entity_type.manager']
+  Drupal\entity_hierarchy\Storage\EntityTreeNodeMapper: '@entity_hierarchy.entity_tree_node_mapper'
   entity_hierarchy.tree_rebuilder:
     class: Drupal\entity_hierarchy\Storage\TreeRebuilder
     arguments: ['@entity_type.manager', '@entity_field.manager']
+  Drupal\entity_hierarchy\Storage\TreeRebuilder: '@entity_hierarchy.tree_rebuilder'