add basic support for gamecard installing

sphaira/include/ui/menus/gc_menu.hpp

@@ -0,0 +1,38 @@
+#pragma once
+
+#include "ui/menus/menu_base.hpp"
+#include "yati/container/base.hpp"
+#include "yati/source/base.hpp"
+
+namespace sphaira::ui::menu::gc {
+
+enum class State {
+    // no gamecard inserted.
+    None,
+    // set whilst transfer is in progress.
+    Progress,
+    // set when the transfer is finished.
+    Done,
+    // set when no gamecard is inserted.
+    NotFound,
+    // failed to parse gamecard.
+    Failed,
+};
+
+struct Menu final : MenuBase {
+    Menu();
+    ~Menu();
+
+    void Update(Controller* controller, TouchInfo* touch) override;
+    void Draw(NVGcontext* vg, Theme* theme) override;
+
+    Result ScanGamecard();
+
+private:
+    std::unique_ptr<fs::FsNativeGameCard> m_fs{};
+    FsDeviceOperator m_dev_op{};
+    yati::container::Collections m_collections{};
+    State m_state{State::None};
+};
+
+} // namespace sphaira::ui::menu::gc