The iterator can now return chunked triangles instead of per element results

src/ifcgeom_schema_agnostic/chunk.h

@@ -0,0 +1,17 @@
+// Chunk.h
+#ifndef CHUNK_H
+#define CHUNK_H
+
+#include <vector>
+
+namespace IfcGeom {
+    struct chunk {
+        std::vector<double> verts;
+        std::vector<int> faces;
+        std::vector<int> materials;
+        std::vector<int> material_ids;
+        std::vector<std::vector<float>> colours;
+    };
+}
+
+#endif