Update checker (#132)

(with some extra spice)

Maybe this should be a target for Android as well.

Signed-off-by: swurl <swurl@swurl.xyz>

Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/132
Co-authored-by: swurl <swurl@swurl.xyz>
Co-committed-by: swurl <swurl@swurl.xyz>

src/yuzu/update_checker.h

@@ -0,0 +1,13 @@
+// Copyright Citra Emulator Project / Azahar Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <optional>
+#include <string>
+
+namespace UpdateChecker {
+std::optional<std::string> GetResponse(std::string url, std::string path);
+std::optional<std::string> GetLatestRelease(bool);
+} // namespace UpdateChecker