Fix flipped binormal in StandardMaterial3D triplanar mapping
Fix flipped binormal in StandardMaterial3D triplanar mapping

This made normal maps on triplanar materials use an inverted Y direction
compared to non-triplanar materials.

pkowal1982/godot,guilhermefelipecgs/godot,vkbsb/godot,guilhermefelipecgs/godot,Faless/godot,sanikoyes/godot,vnen/godot,Valentactive/godot,vkbsb/godot,pkowal1982/godot,BastiaanOlij/godot,BastiaanOlij/godot,Zylann/godot,Shockblast/godot,vnen/godot,pkowal1982/godot,ZuBsPaCe/godot,guilhermefelipecgs/godot,sanikoyes/godot,akien-mga/godot,akien-mga/godot,guilhermefelipecgs/godot,josempans/godot,honix/godot,Valentactive/godot,Shockblast/godot,vnen/godot,pkowal1982/godot,akien-mga/godot,guilhermefelipecgs/godot,DmitriySalnikov/godot,pkowal1982/godot,honix/godot,Zylann/godot,guilhermefelipecgs/godot,Shockblast/godot,akien-mga/godot,ZuBsPaCe/godot,vnen/godot,vnen/godot,vnen/godot,sanikoyes/godot,Zylann/godot,ZuBsPaCe/godot,godotengine/godot,firefly2442/godot,pkowal1982/godot,BastiaanOlij/godot,josempans/godot,Faless/godot,Shockblast/godot,honix/godot,godotengine/godot,honix/godot,ZuBsPaCe/godot,josempans/godot,BastiaanOlij/godot,honix/godot,vkbsb/godot,josempans/godot,firefly2442/godot,vkbsb/godot,firefly2442/godot,Shockblast/godot,josempans/godot,pkowal1982/godot,Valentactive/godot,Zylann/godot,firefly2442/godot,vnen/godot,DmitriySalnikov/godot,ZuBsPaCe/godot,firefly2442/godot,Faless/godot,godotengine/godot,godotengine/godot,Zylann/godot,Valentactive/godot,godotengine/godot,Shockblast/godot,firefly2442/godot,sanikoyes/godot,sanikoyes/godot,DmitriySalnikov/godot,akien-mga/godot,Zylann/godot,josempans/godot,BastiaanOlij/godot,Faless/godot,Faless/godot,ZuBsPaCe/godot,firefly2442/godot,akien-mga/godot,DmitriySalnikov/godot,Valentactive/godot,Valentactive/godot,sanikoyes/godot,guilhermefelipecgs/godot,sanikoyes/godot,akien-mga/godot,sanikoyes/godot,josempans/godot,Shockblast/godot,ZuBsPaCe/godot,BastiaanOlij/godot,vkbsb/godot,godotengine/godot,Valentactive/godot,DmitriySalnikov/godot,godotengine/godot,josempans/godot,Valentactive/godot,vkbsb/godot,Faless/godot,vkbsb/godot,ZuBsPaCe/godot,godotengine/godot,akien-mga/godot,Zylann/godot,BastiaanOlij/godot,honix/godot,firefly2442/godot,Shockblast/godot,BastiaanOlij/godot,DmitriySalnikov/godot,vnen/godot,Faless/godot,DmitriySalnikov/godot,pkowal1982/godot,guilhermefelipecgs/godot,Faless/godot,Zylann/godot,vkbsb/godot