add app.py for test

app.py

@@ -1,6 +1,12 @@
 import gradio as gr
+from FONT.gradio_demo import FONT
 
 def tfr(source_img, driving_audio):
+    tfg = FONT()
+    src_image_path = './FONT/test/image/ABOUT_00994.jpg'
+    driving_audio_path = './FONT/test/audio/00015.mp3'
+    video_path = tfg.test(source_image_path=src_image_path, driving_audio_path=driving_audio_path)
+    print(video_path)
     return None
 
 tfr_demo = gr.Interface(fn=tfr, inputs=["image", "audio"], outputs="video",