This improves compatibility with most older games.

• Prefix creation now uses wineboot and wineserver provided with WineVersion.
• Setup relies on root directory mounted in Z: of prefix to point to game install directory.
• Installation also checks for INFO: Done keword in installation logs do determine if installation was successful. This will be introduced properly with next version of gogdl

Use the following Checklist if you have changed something on the Backend or Frontend:

• Tested the feature and it's working on a current and clean install.
• Tested the main App features and they are still working on a current and clean install. (Login, Install, Play, Uninstall, Move games, etc.)
• Created / Updated Tests (If necessary)
• Created / Updated documentation (If necessary)