Create directories via Browser

[stuikomma]

I want to be able to type https://lively-kernel.org/lively4/lively4-core/NEW_DIRECTORY/NEW_FILE in the browser and then create the missing directories and the new file.
I also want to be able to type https://lively-kernel.org/lively4/lively4-core/NEW_DIRECTORY/ to create an empty directory.