chg to use new vtlib projection stuff, support hiding of vtTerrain members
chg to use new vtlib projection stuff, support hiding of vtTerrain members

seanisom/vtp,nakijun/vtp,markraz/vtp,markraz/vtp,markraz/vtp,seanisom/vtp,nakijun/vtp,nakijun/vtp,markraz/vtp,nakijun/vtp,seanisom/vtp,markraz/vtp,nakijun/vtp,seanisom/vtp,seanisom/vtp