[FL-2514] Port iButton application to C (#1198)

* Initial C iButton app setup
* Add more scenes
* Add even more scenes
* Add even more scenes again
* More scenes...
* Add key info scene
* Add delete success scene
* Use scene state to store internal data
* Add parameter parsing
* Add emulate scene
* Add write scene
* Add write success scene
* Add Read scene
* Add read success scene
* Add exit confirm scene
* Add retry confirm scene
* Add CRC error scene
* Add not key scene
* Add read key menu scene
* Rename some scenes
* Refactor conditionals
* Remove unneeded custom events
* Remove the old iButton app
* Correct formatting
* Remove rogue comments and function prototypes
* iButton: cleanup merge artifacts and fix warnings

Co-authored-by: Aleksandr Kutuzov <alleteam@gmail.com>

applications/ibutton/scenes/ibutton_scene.h

@@ -0,0 +1,29 @@
+#pragma once
+
+#include <gui/scene_manager.h>
+
+// Generate scene id and total number
+#define ADD_SCENE(prefix, name, id) iButtonScene##id,
+typedef enum {
+#include "ibutton_scene_config.h"
+    iButtonSceneNum,
+} iButtonScene;
+#undef ADD_SCENE
+
+extern const SceneManagerHandlers ibutton_scene_handlers;
+
+// Generate scene on_enter handlers declaration
+#define ADD_SCENE(prefix, name, id) void prefix##_scene_##name##_on_enter(void*);
+#include "ibutton_scene_config.h"
+#undef ADD_SCENE
+
+// Generate scene on_event handlers declaration
+#define ADD_SCENE(prefix, name, id) \
+    bool prefix##_scene_##name##_on_event(void* context, SceneManagerEvent event);
+#include "ibutton_scene_config.h"
+#undef ADD_SCENE
+
+// Generate scene on_exit handlers declaration
+#define ADD_SCENE(prefix, name, id) void prefix##_scene_##name##_on_exit(void* context);
+#include "ibutton_scene_config.h"
+#undef ADD_SCENE