Tom/casting from py (#17)
Tom/casting from py (#17)

* Added getting started instructions for Windows

Signed-off-by: Tom Wildenhain <3366478b9695f4a1f3b0bb0f377efd69a07b7f9d@microsoft.com>

* Added casting from python for additional types

* Added error for float16

Co-authored-by: Wenbing Li <2d7ef30f272a04f770fb643dce81b89ce66d5b4e@users.noreply.github.com>
microsoft/onnxruntime-extensions,microsoft/onnxruntime-extensions,microsoft/onnxruntime-extensions,microsoft/onnxruntime-extensions,microsoft/onnxruntime-extensions