derive default layers, armor wearers, arms/chest pose flags and mob variant textures from the vanilla dump, drop the hardcoded lists

tools/ObjectTestRender.java

@@ -100,7 +100,7 @@ public class ObjectTestRender {
         List<Vector> rayMap = EntityTestRender.buildRayMap(loc, W * 3, H * 3);
         RenderJob job = new RenderJob(empty, rayMap, cam, W, H, sky, List.of(), List.of(), List.of(), objs);
         BufferedImage img = renderer.execute(job);
-        File out = new File("/home/elias/Dokumente/PixelPics-Entity-Renders/objects.png");
+        File out = new File(System.getProperty("out", "/home/elias/Dokumente/PixelPics-Entity-Renders/objects.png"));
         ImageIO.write(img, "png", out);
         System.out.println("WROTE " + out);
     }