Gui: Use auto and range-based for (#7481)

* On lines where the variable type is obvious from inspection, avoid repeating the type using auto. 
* When possible use a ranged for loop instead of begin() and end() iterators

src/Gui/AxisOriginPyImp.cpp

@@ -63,7 +63,7 @@ PyObject* AxisOriginPy::getElementPicked(PyObject* args)
         return nullptr;
     }
 
-    SoPickedPoint *pp = static_cast<SoPickedPoint*>(ptr);
+    auto pp = static_cast<SoPickedPoint*>(ptr);
     std::string name;
     if (!getAxisOriginPtr()->getElementPicked(pp,name))
         Py_Return;
@@ -85,7 +85,7 @@ PyObject* AxisOriginPy::getDetailPath(PyObject* args)
         return nullptr;
     }
 
-    SoPath *pPath = static_cast<SoPath*>(ptr);
+    auto pPath = static_cast<SoPath*>(ptr);
     SoDetail *det = nullptr;
     if (!getAxisOriginPtr()->getDetailPath(sub, static_cast<SoFullPath*>(pPath), det)) {
         delete det;