fix for https://github.com/microsoft/onnxruntime/issues/13383,
https://github.com/microsoft/onnxruntime/issues/13408
Currently ort-web doesn't catch exceptions because turning on exception
catching increases the binary size by 3MB (~30%).
But ort can throw (ie onnx errors or ORT_ENFORCE) and there is no
useable error message.
Turning on exception catching just for top level api released file will
fix the error messages at minimal increase of binary size.