Basic shell working.

GUIRenderer.h

@@ -0,0 +1,17 @@
+/*
+ * GUIRenderer - ImGui-based renderer for GUI mode
+ */
+#ifndef KTE_GUI_RENDERER_H
+#define KTE_GUI_RENDERER_H
+
+#include "Renderer.h"
+
+class GUIRenderer : public Renderer {
+public:
+    GUIRenderer() = default;
+    ~GUIRenderer() override = default;
+
+    void Draw(const Editor &ed) override;
+};
+
+#endif // KTE_GUI_RENDERER_H