add support to neoforge

assets/neoforge/textures/block/milk_flowing.png.mcmeta

@@ -0,0 +1,5 @@
+{
+  "animation": {
+    "frametime": 2
+  }
+}

assets/neoforge/textures/block/milk_still.png.mcmeta

@@ -0,0 +1,5 @@
+{
+  "animation": {
+    "frametime": 3
+  }
+}