Fem: [skip ci] Fix several clazy issues:

* Maybe you meant to call base method instead [-Wclazy-skipped-base-method]
* Using copy-ctor but class SbMatrix has a trivial copy-ctor but non trivial assign operator [-Wclazy-rule-of-two-soft]
* Missing emit keyword on signal call FemGui::PointMarker::PointsChanged [-Wclazy-incorrect-emit]

src/Mod/Fem/App/FemConstraintPulley.cpp

@@ -56,7 +56,7 @@ ConstraintPulley::ConstraintPulley()
                       "First belt force");
     ADD_PROPERTY_TYPE(BeltForce2,(0.0),"ConstraintPulley",App::PropertyType(App::Prop_ReadOnly|App::Prop_Output),
                       "Second belt force");
-    ForceAngle.setValue(00.0);
+    ForceAngle.setValue(0.0);
     Diameter.setValue(300.0);
     // calculate initial values of read-only properties
     onChanged(&Force);
@@ -64,7 +64,7 @@ ConstraintPulley::ConstraintPulley()
 
 App::DocumentObjectExecReturn *ConstraintPulley::execute(void)
 {
-    return ConstraintBearing::execute();
+    return ConstraintGear::execute();
 }
 
 void ConstraintPulley::onChanged(const App::Property* prop)