Autoupdate: implement updating bootstrapper utility (#5204)

src/common/RcResource.h

@@ -0,0 +1,22 @@
+#pragma once
+
+#include <string_view>
+#include <optional>
+#include <span>
+#include <filesystem>
+
+class RcResource
+{
+public:
+    std::span<const std::byte> _memory;
+
+    static std::optional<RcResource> create(int resource_id, const std::wstring_view resource_class);
+    bool saveAsFile(const std::filesystem::path destination);
+
+private:
+    RcResource() = delete;
+    RcResource(std::span<const std::byte> memory) :
+        _memory{ std::move(memory) }
+    {
+    }
+};