New API in pangomm 1.20.1

Member Pango::CARIAN

Member Pango::CHAM

Member Pango::KAYAH_LI

Member Pango::LEPCHA

Member Pango::LYCIAN

Member Pango::LYDIAN

Member Pango::OL_CHIKI

Member Pango::REJANG

Member Pango::SAURASHTRA

Member Pango::SUNDANESE

Member Pango::VAI