onnxruntime: Static build fails to register ops

You provide an SO file in your releases. Could you provide a monolythic static library as well. When building from source, you get the following static libraries:

libonnxruntime_common.a
libonnxruntime_framework.a
libonnxruntime_graph.a
libonnxruntime_mlas.a
libonnxruntime_optimizer.a
libonnxruntime_providers.a
libonnxruntime_session.a
libonnxruntime_test_utils.a
libonnxruntime_util.a
libonnx_test_data_proto.a
libonnx_test_runner_common.a
lib/libgmock.a
lib/libgtest.a
onnx/libonnx.a
onnx/libonnx_proto.a

(there may be more)

These could be combined using a .mri script. For example, create the file libonnxruntime.mri which contains:

create libonnxruntime.a
addlib libonnxruntime_common.a
addlib libonnxruntime_framework.a
addlib libonnxruntime_graph.a
addlib libonnxruntime_mlas.a
addlib libonnxruntime_optimizer.a
addlib libonnxruntime_providers.a
addlib libonnxruntime_session.a
addlib libonnxruntime_test_utils.a
addlib libonnxruntime_util.a
addlib libonnx_test_data_proto.a
addlib libonnx_test_runner_common.a
addlib lib/libgmock.a
addlib lib/libgtest.a
addlib onnx/libonnx.a
addlib onnx/libonnx_proto.a
save
end