Support animated textures

- Just uses the legacy model in these cases
- Add automatic resource extraction from mods

assets/biomeswevegone/models/block/blooming_witch_hazel_leaves2.json

@@ -0,0 +1,6 @@
+{
+    "parent": "betterleaves:block/leaves_legacy2",
+    "textures": {
+        "all": "biomeswevegone:block/blooming_witch_hazel_leaves"
+    }
+}