C++ apps: templated scene controller (#517)

* C++ apps: templated scene controller
* templated app: fix type names
* templated app: text store component
* Applications: add "Templated Scene" application
* templated app: refractoring
* Gui module byte input: fix docs
* templated app: new byte input scene
* templated app: dialog ex view module
* templated app: popup view module
* templated app: dialog-ex view module, fix docs
* templated app: text input view module
* Gui module text input: fix docs
* Furi: duplicated include
* templated app: record holder (controller) class
* templated app: view modules can now be accessed via cast
* templated app: remove unused includes
* templated app: fix return code

applications/scened-app-example/scened-app.h

@@ -0,0 +1,47 @@
+#pragma once
+#include <furi.h>
+#include <api-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();
+};