Return correct mesh format for PrimitiveMesh.
Return correct mesh format for PrimitiveMesh.

The return value was changed during the Vulkan port, but it didn't include ARRAY_FORMAT_INDEX. This meant they were wrongly considered non-indexed meshes and the click-selection logic for all primitive meshes broke.

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