Add VTE_SEAL and VTE_DEPRECATED macros
Add VTE_SEAL and VTE_DEPRECATED macros

gloob/vte-copy,jessevdk/vte,asivokon/vte-fx,jessevdk/vte,thestinger/vte-ng,rvu95/vte,thestinger/vte-ng,saitoha/vte-sixel,jessevdk/vte,aligo/vte,asivokon/vte-fx,flaxandteal/gasket-vte,asivokon/vte-fx,aligo/vte,saitoha/vte-sixel,flaxandteal/gasket-vte,flaxandteal/gasket-vte,thestinger/vte-ng,gloob/vte-copy,rvu95/vte,saitoha/vte-sixel,gloob/vte-copy,flaxandteal/gasket-vte,pjm0616/vte,pjm0616/vte,jessevdk/vte,pjm0616/vte,aligo/vte,rvu95/vte,asivokon/vte-fx,rvu95/vte