Adaption to pystencils's new type system

Adapts lbmpy to pystencils's new type system

lbmpy_tests/test_quicktests.py

@@ -17,7 +17,7 @@ def test_entropic_methods():
                                       relaxation_rates=[1.8, sp.Symbol("omega_free")],
                                       lid_velocity=0.005,
                                       entropic_newton_iterations=3, entropic=True, compressible=True,
-                                      zero_centered=False, force=(-1e-10, 0), force_model=ForceModel.LUO)
+                                      zero_centered=False)
 
     sc_entropic = create_lid_driven_cavity((40, 40), method=Method.ENTROPIC_SRT, relaxation_rate=1.99,
                                            lid_velocity=0.005, compressible=True, zero_centered=False,