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

Yabin Li

2023-12-26 b8825902d93d5017e44828316062dc8306b7ddcd

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una    isa
pangalawang    dalawa
pangatlo    tatlo
ikaapat    apat
ikalimang    lima
ikaanim    ikaanim
ikapitong    pito
ikawalo    walo
ikasiyam    siyam