add onnx quantize model for onnx; add tester_rtf

lyblsgo

2023-03-21 c8f3af885543aff5018a4897909ade8517d820ca

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beam_size: 1
penalty: 0.0
maxlenratio: 0.0
minlenratio: 0.0
ctc_weight: 0.0
lm_weight: 0.15