Multiple implementation: language ID vs folder name

The folder name for an implementation may not be exactly the name of the language. We need a mapping for example Simulink is SIMULINK (upper case)

These are the folder names:

Concrete example:

1. I create a function with a default implementation set to "Simulink"
2. taste will create a folder named /SIMULINK (uppercase) to store the implementation
3. we add an implementation in the IV (e.g. in C)
4. Space Creator will try to move /Simulink in the implem subfolder... Because it does not know the name is SIMULINK, not Simulink.

So in the list of languages, I think you have to add an attribute "folder_name" (to be filled by me) and use it instead of the raw language name