Add configurable logging backends

src/yuzu/debugger/console.h

@@ -0,0 +1,14 @@
+// Copyright 2018 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+namespace Debugger {
+
+/**
+ * Uses the WINAPI to hide or show the stderr console. This function is a placeholder until we can
+ * get a real qt logging window which would work for all platforms.
+ */
+void ToggleConsole();
+} // namespace Debugger