Add model download URL

modules/image_restoration/model_downloader.py

@@ -0,0 +1,9 @@
+from modules.live_portrait.model_downloader import download_model
+
+MODELS_REALESRGAN_URL = {
+    "realesr-general-x4v3": "https://huggingface.co/jhj0517/realesr-general-x4v3/resolve/main/realesr-general-x4v3.pth",
+}
+
+
+def download_resrgan_model(file_path, url):
+    return download_model(file_path, url)