Design properties: project, author and licence in the design, its exports and inspect_design (#1015) (#1189)

A design carries metadata (format 21): project, part number, revision, author, organization, description and license, plus other tools' data under reverse-DNS keys, kept as written. Edited in the Design Properties window (Document Settings), set by document.metadata.set, reported by inspect_design, and written into STEP, IGES and 3MF where the format has a place for them. Translated, with tests.

crates/engine/src/cmd/script_tests.rs

@@ -140,6 +140,23 @@ fn units_materials_and_rules_come_back() {
     assert_eq!(a, b, "mass comes from the replayed material");
 }
 
+#[test]
+fn design_properties_come_back_and_odd_keys_are_listed() {
+    let mut s = Session::default();
+    run(&mut s, "solid.box", json!({"length": 10, "width": 10, "height": 10}));
+    run(&mut s, "document.metadata.set", json!({"values": {"author": "Jane", "description": "two\nlines", "com.acme.tool": {"id": [1, 2]}}}));
+    // Keys another tool wrote that the command would refuse.
+    s.doc_mut().metadata.0.insert("revision".into(), json!(3));
+    s.doc_mut().metadata.0.insert("org.other".into(), json!("text"));
+    let r = run(&mut s, "timeline.export_script", json!({}));
+    assert!(r["omitted"].to_string().contains("(org.other, revision)"), "{r}");
+    let t = replay(&script(&mut s));
+    assert_eq!(
+        serde_json::to_value(&t.doc.metadata).unwrap(),
+        json!({"author": "Jane", "description": "two\nlines", "com.acme.tool": {"id": [1, 2]}})
+    );
+}
+
 #[test]
 fn what_the_script_leaves_out_is_listed_and_components_are_refused() {
     let mut s = Session::default();