move symlink to examples directory; re-add Graphics class to python

Author: catilac

crates/processing_pyo3/assets

@@ -0,0 +1 @@
+../../../assets

crates/processing_pyo3/examples/assets

@@ -47,6 +47,7 @@ fn processing(m: &Bound<'_, PyModule>) -> PyResult<()> {
     m.add_class::<Material>()?;
     m.add_class::<Gltf>()?;
     m.add_class::<Shader>()?;
+    m.add_class::<Geometry>()?;
     m.add_function(wrap_pyfunction!(gltf::load_gltf, m)?)?;
     m.add_function(wrap_pyfunction!(size, m)?)?;
     m.add_function(wrap_pyfunction!(run, m)?)?;