feat: add default for modelblock

src/model/mod.rs

@@ -127,7 +127,19 @@ pub struct ModelSectionInfo<T> {
     pub index_buffer: [T; 3],
 }
 
-#[derive(Debug)]
+impl<T: Default> Default for ModelSectionInfo<T> {
+    fn default() -> Self {
+        Self {
+            stack: T::default(),
+            runtime: T::default(),
+            vertex_buffer: [T::default(), T::default(), T::default()],
+            edge_geometry_vertex_buffer: [T::default(), T::default(), T::default()],
+            index_buffer: [T::default(), T::default(), T::default()],
+        }
+    }
+}
+
+#[derive(Debug, Default)]
 #[cfg_attr(feature = "read", derive(binrw::BinRead), br(little))]
 #[cfg_attr(feature = "write", derive(binrw::BinWrite), bw(little))]
 pub struct ModelBlock {