Pascal API examples

Please see

• https://github.com/k2-fsa/sherpa-onnx/blob/master/pascal-api-examples/non-streaming-asr/run-moonshine.sh

• https://github.com/k2-fsa/sherpa-onnx/blob/master/pascal-api-examples/vad-with-non-streaming-asr/run-vad-with-moonshine.sh