Savegame Converter: Basic mechanism for savegame conversion using Savegame Tool
Resource System: Trying out automatic conversion of legacy savegames

Any existing savegames for a newly added game are now automatically
converted at this time. However, the converted .save package is not
currently written to proper output path (presently they end up in
Savegame Tool's /home folder).

A more intelligent mechanism that considers things such as custom
and game-specific save folders is needed.