Macos space mouse support (#1815)

Thanks @NecroKote.

crates/threedx-client/examples/dump.rs

@@ -0,0 +1,11 @@
+//! Prints what the 3Dconnexion driver reports: `cargo run -p solidcraft-3dx-client --example dump`.
+//! The driver sends nothing to a program that is not in an app bundle, so only `DeviceAdded` shows here;
+//! use SolidCraft's own `.app` to see the cap move.
+
+fn main() {
+    if let Err(error) = solidcraft_3dx_client::start("SolidCraft dump", |event| println!("{event:?}")) {
+        eprintln!("{error}");
+        return;
+    }
+    std::thread::sleep(std::time::Duration::from_secs(60));
+}