Fix file sync issue — An Architect's Adventure Steam update #300210

Solved the issue that the savefiles of the demo and the full version are not sync . I have made a remedy. New players will automatically copy the save file to the full version after playing the demo and open the full version. If you are an old player and have encountered this problem before, this solution is invalid, then your solution will be to manually move the archive (the file is under \An Architect's Adventure_Data\StreamingAssets)