add video_vae and dit for ltx-2

diffsynth/utils/state_dict_converters/ltx2_dit.py

@@ -0,0 +1,9 @@
+def LTXModelStateDictConverter(state_dict):
+    state_dict_ = {}
+    for name in state_dict:
+        if name.startswith("model.diffusion_model."):
+            new_name = name.replace("model.diffusion_model.", "")
+            if new_name.startswith("audio_embeddings_connector.") or new_name.startswith("video_embeddings_connector."):
+                continue
+            state_dict_[new_name] = state_dict[name]
+    return state_dict_