Add LC_LZ2 Compression library

Refactor ROM class
Editor housekeeping

src/app/editor/sprite_editor.h

@@ -0,0 +1,17 @@
+#ifndef YAZE_APP_EDITOR_SPRITE_EDITOR_H
+#define YAZE_APP_EDITOR_SPRITE_EDITOR_H
+
+#include "absl/status/status.h"
+
+namespace yaze {
+namespace app {
+namespace editor {
+class SpriteEditor {
+  public:
+    absl::Status Update();
+};
+}  // namespace editor
+}  // namespace app
+}  // namespace yaze
+
+#endif  // YAZE_APP_EDITOR_SPRITE_EDITOR_H