basic working polygon renderer

src/client/render/voxel_poly/group.rs

@@ -0,0 +1,11 @@
+use nalgebra::{Transform3, Vector3};
+
+#[repr(C, align(16))]
+#[derive(Debug, Clone, Copy, PartialEq, bytemuck::Zeroable, Default)]
+pub struct FaceGroup {
+    pub transform: Transform3<f32>,
+    pub dimensions: Vector3<u32>,
+    pub face: u32,
+}
+
+unsafe impl bytemuck::Pod for FaceGroup {}