support ngram and fst hotword for 2pass-offline (#1205)

Yabin Li

2023-12-26 b8825902d93d5017e44828316062dc8306b7ddcd

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dalawampu't    2
tatlumpu't    3
apatnapu't    4
limampu't    5
animnapu't    6
pitumpu't    7
walumpu't    8
siyamnapu't    9