refactor(mesh): use new IndexBuffer sig
refactor(mesh): use new IndexBuffer sig

zenmumbler/stardazed-tx,zenmumbler/libzm,stardazed/stardazed,stardazed/stardazed-tx,stardazed/stardazed-tx,zenmumbler/stardazed-tx,zenmumbler/libzm,stardazed/stardazed,zenmumbler/libzm,zenmumbler/stardazed-tx,zenmumbler/libzm,zenmumbler/stardazed-tx,stardazed/stardazed-tx