Rearrange config settings
Rearrange config settings

- Remove CUSTOM_PLUGIN_MODULE_PATHS.
  This is a hack to lookup modules outside the PYTHON_PATH. It should
  not be used.
- Group cookie-state settings
- Group path settings to other/relative files; but at the same time,
  add new lines to make jumping between the settings eaiser.

Signed-off-by: Ivan Kanakarakis <f60d6943d72436645c4304926eeeac2718a1142c@gmail.com>

SUNET/SATOSA,SUNET/SATOSA,its-dirg/SATOSA