Adaption to pystencils's new type system

Adapts lbmpy to pystencils's new type system

conftest.py

@@ -63,7 +63,7 @@ except ImportError:
                                     "lbmpy_tests/full_scenarios/kida_vortex_flow/scenario_kida_vortex_flow.py")]
 
 if platform.system().lower() == 'windows':
-    collect_ignore += [os.path.join(SCRIPT_FOLDER, "lbmpy_tests/test_quicktests.py.py")]
+    collect_ignore += [os.path.join(SCRIPT_FOLDER, "lbmpy_tests/test_quicktests.py")]
 
 sver = sympy.__version__.split(".")
 if int(sver[0]) == 1 and int(sver[1]) < 2: