Offset integer ranges in runtime block data serialization

this is useful for stuff like snow layers where the range doesn't start at 0.

src/block/Light.php

@@ -42,7 +42,7 @@ final class Light extends Flowable{
 	}
 
 	protected function encodeType(RuntimeDataWriter $w) : void{
-		$w->writeInt(4, $this->level);
+		$w->writeBoundedInt(4, self::MIN_LIGHT_LEVEL, self::MAX_LIGHT_LEVEL, $this->level);
 	}
 
 	public function getLightLevel() : int{ return $this->level; }