Created DungeonEditor and Canvas

src/app/editor/dungeon_editor.h

@@ -0,0 +1,26 @@
+#ifndef YAZE_APP_EDITOR_DUNGEONEDITOR_H
+#define YAZE_APP_EDITOR_DUNGEONEDITOR_H
+
+#include <imgui/imgui.h>
+
+#include "gui/icons.h"
+#include "gui/canvas.h"
+
+namespace yaze {
+namespace app {
+namespace editor {
+class DungeonEditor {
+ public:
+  void Update();
+
+ private:
+  void DrawToolset();
+
+  gui::Canvas canvas_;
+  ImGuiTableFlags toolset_table_flags_ = ImGuiTableFlags_SizingFixedFit;
+};
+}  // namespace editor
+}  // namespace app
+}  // namespace yaze
+
+#endif