fix(Item): better include data.meta

Don't need the weird getDataMeta()

Author: BurningDog

src/Item.php

@@ -114,14 +114,6 @@ public function hasAttributes(): bool
         return !empty($this->toArray());
     }
 
-    /**
-     * @return Meta
-     */
-    public function getDataMeta(): Meta
-    {
-        return $this->meta;
-    }
-
     /**
      * @return array
      */
@@ -150,6 +142,9 @@ public function getRelationships(): array
                         'type' => $relation->getIncluded()->getType(),
                         'id' => $relation->getIncluded()->getId(),
                     ];
+                    if ($relation->getIncluded()->getMeta()) {
+                        $relationships[$name]['data']['meta'] = $relation->getIncluded()->getMeta();
+                    }
                 }
             } elseif ($relation instanceof ManyRelationInterface) {
                 $relationships[$name]['data'] = [];

tests/Parsers/ItemParserTest.php

@@ -657,7 +657,7 @@ public function itParsesMetaInData()
 
         $item = $parser->parse($this->getJsonApiItemMock('master', '1'));
 
-        $dataMeta = $item->getRelation('childwithdatameta')->getIncluded()->getDataMeta();
+        $dataMeta = $item->getRelation('childwithdatameta')->getIncluded()->getMeta();
         static::assertInstanceOf(Meta::class, $dataMeta);
 
         $image = $dataMeta->imageDerivatives->links->header->href;