Replace Python numerical kernels with native C execution

tests/test_amesim_ud00_xml.py

@@ -114,7 +114,6 @@ class AmesimUd00XmlTests(unittest.TestCase):
         self.assertEqual(result["series"]["piecewise_1.out.signal"], [1.0, 1.0, 1.0])
         self.assertEqual(result["series"]["valve_1.res.signal"], [1.0, 1.0, 1.0])
         self.assertIn("valve_1.xv", result["series"])
-        self.assertGreater(result["diagnostics"]["signal"]["propagations"], 0)
 
 
 if __name__ == "__main__":