primitive chunk table in world snapshot instead of colliding long-keyed hashmap, bounded cache for tinted/composited mob and banner textures, vanilla dump with nested model json, village benchmark and perf test scenes

src/main/java/eu/mhsl/minecraft/pixelpics/Main.java

@@ -116,10 +116,11 @@ public final class Main extends JavaPlugin {
         try (InputStream in =
                 dump.isFile() ? new java.io.FileInputStream(dump) : getResource("cem/vanilla_entity_models.json")) {
             if (in != null) {
+                long t0 = System.nanoTime();
                 int n = cemLoader.load(in, getLogger());
                 getLogger()
                         .info("Loaded vanilla entity models" + (dump.isFile() ? " from " + dump.getName() : "") + " ("
-                                + n + " models total).");
+                                + n + " models total, " + (System.nanoTime() - t0) / 1_000_000 + " ms).");
             }
         } catch (Exception e) {
             getLogger().severe("Failed to load vanilla entity models: " + e.getMessage());