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/scened_app_example/scened_app.h

@@ -0,0 +1,47 @@
+#pragma once
+#include <furi.h>
+#include <furi_hal.h>
+
+#include <generic_scene.hpp>
+#include <scene_controller.hpp>
+#include <view_controller.hpp>
+#include <record_controller.hpp>
+#include <text_store.h>
+
+#include <view_modules/submenu_vm.h>
+#include <view_modules/byte_input_vm.h>
+
+#include <notification/notification_messages.h>
+
+class ScenedApp {
+public:
+    enum class EventType : uint8_t {
+        GENERIC_EVENT_ENUM_VALUES,
+        MenuSelected,
+        ByteEditResult,
+    };
+
+    enum class SceneType : uint8_t {
+        GENERIC_SCENE_ENUM_VALUES,
+        ByteInputScene,
+    };
+
+    class Event {
+    public:
+        union {
+            int32_t menu_index;
+        } payload;
+
+        EventType type;
+    };
+
+    SceneController<GenericScene<ScenedApp>, ScenedApp> scene_controller;
+    TextStore text_store;
+    ViewController<ScenedApp, SubmenuVM, ByteInputVM> view_controller;
+    RecordController<NotificationApp> notification;
+
+    ~ScenedApp();
+    ScenedApp();
+
+    void run();
+};