Auto-registration of toolchain

When executing the Controller Tester, it extracts the information of Visual Studio compiler installed in user PC and the information GCC compiler installed along with the Controller Tester and registers the toolchain automatically (the registered toolchain is not registered again.).

The auto-registered toolchain can be checked in [Window] -> [Preferences] -> [Toolchain] window, and it displays the message “Automatically generated.” in the description.