Neural Network for WASI

This Part has been moved to

1. Pytorch: https://wasmedge.org/docs/develop/rust/wasinn/pytorch
2. OpenVINO: https://wasmedge.org/docs/develop/rust/wasinn/openvino
3. TensorFlow-Lite: https://wasmedge.org/docs/develop/rust/wasinn/tensorflow_lite

Please use our new docs.