Add EOF newlines where missing (bulk) (#1836)

This should solve issues with people making GitHub PRs and having the web editor messing things up. GitHub Web Editor sucks :(

src/pocketmine/metadata/BlockMetadataStore.php

@@ -86,4 +86,4 @@ class BlockMetadataStore extends MetadataStore{
 			throw new \InvalidStateException("Block does not belong to world " . $this->owningLevel->getName());
 		}
 	}
-}
+}

src/pocketmine/metadata/EntityMetadataStore.php

@@ -34,4 +34,4 @@ class EntityMetadataStore extends MetadataStore{
 
 		return $entity->getId() . ":" . $metadataKey;
 	}
-}
+}

src/pocketmine/metadata/LevelMetadataStore.php

@@ -34,4 +34,4 @@ class LevelMetadataStore extends MetadataStore{
 
 		return strtolower($level->getName()) . ":" . $metadataKey;
 	}
-}
+}

src/pocketmine/metadata/MetadataStore.php

@@ -131,4 +131,4 @@ abstract class MetadataStore{
 	 * @throws \InvalidArgumentException
 	 */
 	abstract public function disambiguate(Metadatable $subject, string $metadataKey) : string;
-}
+}

src/pocketmine/metadata/MetadataValue.php

@@ -52,4 +52,4 @@ abstract class MetadataValue{
 	 * accessed.
 	 */
 	abstract public function invalidate();
-}
+}

src/pocketmine/metadata/Metadatable.php

@@ -64,4 +64,4 @@ interface Metadatable{
 	 */
 	public function removeMetadata(string $metadataKey, Plugin $owningPlugin);
 
-}
+}