pangomm: New API in pangomm 1.40

pangomm 2.48.1

New API in pangomm 1.40

Member Pango::AHOM
Member Pango::ANATOLIAN_HIEROGLYPHS
Member Pango::BASSA_VAH
Member Pango::CAUCASIAN_ALBANIAN
Member Pango::DUPLOYAN
Member Pango::ELBASAN
Member Pango::GRANTHA
Member Pango::HATRAN
Member Pango::KHOJKI
Member Pango::KHUDAWADI
Member Pango::LINEAR_A
Member Pango::MAHAJANI
Member Pango::MANICHAEAN
Member Pango::MENDE_KIKAKUI
Member Pango::MODI
Member Pango::MRO
Member Pango::MULTANI
Member Pango::NABATAEAN
Member Pango::OLD_HUNGARIAN
Member Pango::OLD_NORTH_ARABIAN
Member Pango::OLD_PERMIC
Member Pango::PAHAWH_HMONG
Member Pango::PALMYRENE
Member Pango::PAU_CIN_HAU
Member Pango::PSALTER_PAHLAVI
Member Pango::SIDDHAM
Member Pango::SIGNWRITING
Member Pango::TIRHUTA
Member Pango::WARANG_CITI