Puzzle 0.3.0 - 1.17

Modulized into:
puzzle-base (update checker + config)
puzzle-gui (unified config gui)
puzzle-models (remove limitations)
puzzle-blocks (custom render layers)
puzzle-splashscreen (resourcepack-provided spash screen)

Updated to 1.17

puzzle-models/src/main/resources/puzzle-models.mixins.json

@@ -0,0 +1,11 @@
+{
+  "required": true,
+  "package": "net.puzzlemc.models.mixin",
+  "compatibilityLevel": "JAVA_8",
+  "client": [
+    "MixinModelElementDeserializer"
+  ],
+  "injectors": {
+    "defaultRequire": 1
+  }
+}