Add the IFileConfiguration documentation (#54)
It can also be used for the website

Signed-off-by: Nico Rutishauser <nr@hotmail.ch>
Document the IFileManager (#54)

Signed-off-by: Nico Rutishauser <nr@hotmail.ch>
Add documentation for various interfaces (#54)

Signed-off-by: Nico Rutishauser <nr@hotmail.ch>