Check the modpack directory for a valid serverpackcreator configuration-file
Check a given modpack directory whether a valid serverpackcreator.conf-file exists within it.
If a conf-file is present, validate it, and if it is a valid configuration, ask the user whether they would like to load that configuration file into the GUI.
i.e.: "We found a ServerPackCreator-configuration in the selected modpack. Would you like to load it?"
or something along those lines.