mv knf to thirdparty

lyblsgo

2023-04-22 1f8be555ccaafd78c91c6b230ccb326f8d31e89f

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beam_size: 10
penalty: 0.0
maxlenratio: 0.0
minlenratio: 0.0
ctc_weight: 0.5
lm_weight: 0.7