Add vision model support

Author: Galunid

convert-hf-to-gguf.py

@@ -166,7 +166,7 @@ def from_model_architecture(model_architecture):
             return RefactModel
         if model_architecture == "PersimmonForCausalLM":
             return PersimmonModel
-        if model_architecture == "StableLMEpochForCausalLM":
+        if model_architecture in ("StableLMEpochForCausalLM", "LlavaStableLMEpochForCausalLM"):
             return StableLMModel
         return Model