init fuse gallery

deploy/lite/fuse_gallery.py

+import paddle
+from deploy.utils.config import parse_config, parse_args
+
+
+def load_feature_extractor(configs):
+    pass
+
+
+def build_gallery_feature(feature_extractor):
+    pass
+
+
+def save_fuse_model(fuse_model):
+    pass
+
+
+class FuseModel(paddle.nn.Layer):
+    def __init__(self, configs):
+        super().__init__()
+        self.feature_extractor = load_feature_extractor(configs)
+        self.gallery_layer = build_gallery_feature(self.feature_extractor)
+
+    def forward(self, x):
+        x = self.feature_model(x)
+        x = self.gallery_layer(x)
+        return x
+
+
+def main():
+    args = parse_args()
+    configs = parse_config(args.config)
+    fuse_model = FuseModel(configs)
+    save_fuse_model(fuse_model)
+
+
+if __name__ == '__main__':
+    main()