C++17ification.

C++17ification!

- Filesystem interaction now uses std::filesystem::path.
- Usage of const char*, std::string have been changed to
  std::string_view where appropriate.
- Usage of printf-style functions changed to use fmt.

src/xenia/config.h

@@ -1,10 +1,20 @@
+/**
+ ******************************************************************************
+ * Xenia : Xbox 360 Emulator Research Project                                 *
+ ******************************************************************************
+ * Copyright 2020 Ben Vanik. All rights reserved.                             *
+ * Released under the BSD license - see LICENSE in the root for more details. *
+ ******************************************************************************
+ */
+
 #ifndef XENIA_CONFIG_H_
 #define XENIA_CONFIG_H_
-#include <string>
+
+#include <filesystem>
 
 namespace config {
-void SetupConfig(const std::wstring& config_folder);
-void LoadGameConfig(const std::wstring& title_id);
+void SetupConfig(const std::filesystem::path& config_folder);
+void LoadGameConfig(const std::string_view title_id);
 }  // namespace config
 
 #endif  // XENIA_CONFIG_H_