Exclude onnx test data from package directories (#265)

Signed-off-by: take-cheeze <takechi101010@gmail.com>

Author: take-cheeze

MANIFEST.in

@@ -6,4 +6,4 @@ recursive-include third_party *
 include VERSION_NUMBER
 include CMakeLists.txt
 
-recursive-exclude third_party *.onnx *.pb *.cs *.rs
+recursive-exclude third_party *.onnx *.pb *.cs *.rs test_data_set_*