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/base/system_win.cc

@@ -0,0 +1,27 @@
+/**
+ ******************************************************************************
+ * 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. *
+ ******************************************************************************
+ */
+
+#include "xenia/base/platform_win.h"
+#include "xenia/base/string.h"
+#include "xenia/base/system.h"
+
+namespace xe {
+
+void LaunchWebBrowser(const std::string& url) {
+  auto temp = xe::to_utf16(url);
+  ShellExecuteW(nullptr, L"open", reinterpret_cast<LPCWSTR>(url.c_str()),
+                nullptr, nullptr, SW_SHOWNORMAL);
+}
+
+void LaunchFileExplorer(const std::filesystem::path& url) {
+  ShellExecuteW(nullptr, L"explore", url.c_str(), nullptr, nullptr,
+                SW_SHOWNORMAL);
+}
+
+}  // namespace xe