[Core] add quantity Magnetization

- needed for FEM and Material

src/App/Application.cpp

@@ -1916,6 +1916,7 @@ void Application::initTypes()
     App::PropertyPressure           ::init();
     App::PropertyCurrentDensity     ::init();
     App::PropertyElectricPotential  ::init();
+    App::PropertyMagnetization      ::init();
     App::PropertyVacuumPermittivity ::init();
     App::PropertyInteger            ::init();
     App::PropertyIntegerConstraint  ::init();

src/App/PropertyUnits.cpp

@@ -309,6 +309,17 @@ PropertyLength::PropertyLength()
     setConstraints(&LengthStandard);
 }
 
+//**************************************************************************
+//**************************************************************************
+// PropertyMagnetization
+//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+
+TYPESYSTEM_SOURCE(App::PropertyMagnetization, App::PropertyQuantity)
+
+PropertyMagnetization::PropertyMagnetization()
+{
+    setUnit(Base::Unit::Magnetization);
+}
 
 //**************************************************************************
 //**************************************************************************

src/App/PropertyUnits.h

@@ -237,6 +237,19 @@ public:
     ~PropertyLength() override = default;
 };
 
+ /** Magnetization property
+ * This is a property for representing magnetizations. It is basically a float
+ * property. On the Gui it has a quantity like A/m.
+ */
+    class AppExport PropertyMagnetization: public PropertyQuantityConstraint
+{
+    TYPESYSTEM_HEADER_WITH_OVERRIDE();
+
+public:
+    PropertyMagnetization();
+    ~PropertyMagnetization() override = default;
+};
+
 /** Pressure property
  * This is a property for representing acceleration. It is basically a float
  * property. On the Gui it has a quantity like m/s^2.