Currently, some logs can be missing when a fatal error occurs (especially GuestBrokeExecutionException).
This MR attempts to flush logs to console and file before process exit.
This fixes https://github.com/Ryubing/Issues/issues/30
* Switch to "Release" build config (PerformanceCheck(); will only be called in Release build config)
* Enable "Trace Logs" in Ryujinx settings
* Double-click a game to launch
* Ryujinx will attempt to open a confirmation dialog box that never opens, causing UI deadlock