Fix typos

Found via `codespell -q 3 -I ../fc-word-whitelist.txt -S ./.git,*.po,*.ts,./ChangeLog.txt,./src/3rdParty,./src/Mod/Assembly/App/opendcm,./src/CXX,./src/zipios++,./src/Base/swig*,./src/Mod/Robot/App/kdl_cp,./src/Mod/Import/App/SCL,./src/WindowsInstaller`

src/Mod/Part/App/GeometryDefaultExtension.h

@@ -63,7 +63,7 @@ namespace Part {
     //
     // Warnings:
     // - The default constructor relies on the default constructor of T for initialisation. Built-in types
-    //   so constructed will be uninitialised. Use the specific constructor from a T to initiliase it. Note
+    //   so constructed will be uninitialised. Use the specific constructor from a T to initialise it. Note
     //   that the default constructor is required by the type system (see TYPESYSTEM_SOURCE_TEMPLATE_T).
     //
     // Default assumptions:
@@ -79,7 +79,7 @@ namespace Part {
     //
     // Instructions:
     //
-    // 1. Read the assumptions above and provide template initilisation if needed.
+    // 1. Read the assumptions above and provide template initialisation if needed.
     // 2. Add an alias to your type under these comments
     // 3. Add a TYPESYSTEM_SOURCE_TEMPLATE_T in the cpp file to generate class type information
     // 4. Provide a specialisation of getPyObject to generate a py object of the corresponding type (cpp file)

src/Mod/Part/App/GeometryPyImp.cpp

@@ -269,7 +269,7 @@ PyObject* GeometryPy::getExtensionOfType(PyObject *args)
             try {
                 std::shared_ptr<GeometryExtension> ext(this->getGeometryPtr()->getExtension(type));
 
-                // we create a copy and tranfer this copy's memory management responsibility to Python
+                // we create a copy and transfer this copy's memory management responsibility to Python
                 PyObject* cpy = static_cast<GeometryExtensionPy *>(ext->getPyObject())->copy(Py::new_reference_to(Py::Tuple(size_t(0))));
 
                 return cpy;
@@ -303,7 +303,7 @@ PyObject* GeometryPy::getExtensionOfName(PyObject *args)
         try {
             std::shared_ptr<GeometryExtension> ext(this->getGeometryPtr()->getExtension(std::string(o)));
 
-            // we create a copy and tranfer this copy's memory management responsibility to Python
+            // we create a copy and trasnfer this copy's memory management responsibility to Python
             PyObject* cpy = static_cast<GeometryExtensionPy *>(ext->getPyObject())->copy(Py::new_reference_to(Py::Tuple(size_t(0))));
 
             return cpy;