Naming and coding style convention, new linter tool. (#945)

* Makefile, Scripts: new linter
* About: remove ID from IC
* Firmware: remove double define for DIVC/DIVR
* Scripts: check folder names too. Docker: replace syntax check with make lint.
* Reformat Sources and Migrate to new file naming convention
* Docker: symlink clang-format-12 to clang-format
* Add coding style guide

applications/accessor/accessor_app.h

@@ -0,0 +1,58 @@
+#pragma once
+#include <map>
+#include <list>
+#include "accessor_view_manager.h"
+
+#include "scene/accessor_scene_start.h"
+
+#include "helpers/wiegand.h"
+
+#include <one_wire_master.h>
+
+#include <notification/notification_messages.h>
+
+class AccessorApp {
+public:
+    void run(void);
+
+    AccessorApp();
+    ~AccessorApp();
+
+    enum class Scene : uint8_t {
+        Exit,
+        Start,
+    };
+
+    AccessorAppViewManager* get_view_manager();
+    void switch_to_next_scene(Scene index);
+    void search_and_switch_to_previous_scene(std::initializer_list<Scene> scenes_list);
+    bool switch_to_previous_scene(uint8_t count = 1);
+    Scene get_previous_scene();
+
+    void notify_green_blink();
+    void notify_success();
+
+    char* get_text_store();
+    uint8_t get_text_store_size();
+    void set_text_store(const char* text...);
+
+    WIEGAND* get_wiegand();
+    OneWireMaster* get_one_wire();
+
+private:
+    std::list<Scene> previous_scenes_list = {Scene::Exit};
+    Scene current_scene = Scene::Start;
+    AccessorAppViewManager view;
+
+    std::map<Scene, AccessorScene*> scenes = {
+        {Scene::Start, new AccessorSceneStart()},
+    };
+
+    static const uint8_t text_store_size = 128;
+    char text_store[text_store_size + 1];
+
+    WIEGAND wiegand;
+    OneWireMaster onewire_master;
+
+    NotificationApp* notification;
+};