- Tensor construction now uses different logic for primitive types (using their native in-memory layout) and strings (filling the tensor with onnxruntime's `FillStringTensor`).
  - Extended `TypeToTensorElementDataType` to also be able to expose utf8 contents, if present
  - `Utf8Data` trait to make it possible to use both `String` and `&str`
- `call_ort` helper that takes care of mapping the ort status to a Result so you can't forget to do it
- `print_structure` example that shows the inputs and outputs of an .onnx model (names, types, etc)