Added 3D rendering demo + ignore gradio stuff [no ci]

.gitignore

@@ -8,3 +8,9 @@ livermask.egg-info/
 *.nii
 *__pycache__/
 .idea/
+*.glb
+gradio_cached_examples/
+flagged/
+files/
+*.csv
+*.txt

demo/app.py

@@ -1,7 +1,22 @@
 import gradio as gr
+import subprocess as sp
 
-def greet(name):
-    return "Hello" + name + "!!"
+def download_testdata():
+    sp.check_call(["wget", "https://github.com/gradio-app/gradio/raw/main/demo/model3D/files/Duck.glb"])
 
-iface = gr.Interface(fn=greet, inputs="text", output="text")
-iface.launch()
+def load_mesh(mesh_file_name):
+    return mesh_file_name
+
+demo = gr.Interface(
+    fn=load_mesh,
+    inputs=gr.Model3D(),
+    outputs=gr.Model3D(clear_color=[0.0, 0.0, 0.0, 0.0], label="3D Model"),
+    examples=[
+        ["Duck.glb"],
+    ],
+    cache_examples=True,
+)
+
+if __name__ == "__main__":
+    download_testdata()
+    demo.launch()