New API in pangomm 1.20.1

Member Pango::SCRIPT_KAYAH_LI

Member Pango::SCRIPT_LEPCHA

Member Pango::SCRIPT_REJANG

Member Pango::SCRIPT_SUNDANESE

Member Pango::SCRIPT_SAURASHTRA

Member Pango::SCRIPT_CHAM

Member Pango::SCRIPT_OL_CHIKI

Member Pango::SCRIPT_VAI

Member Pango::SCRIPT_CARIAN

Member Pango::SCRIPT_LYCIAN

Member Pango::SCRIPT_LYDIAN