fst: support eng hotword

雾聪

2023-12-12 3c83d64c84602de055f503af7d4e2761c829ec2e

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