New LF-RFID app (#534)

* Hal lfrfid: add read timer pulse and period config fns
* New debug application for lfrfid subsystem
* New lfrfid: app, fix naming
* App lfrfid: assets
* Container view module
* App ibutton: remove unused header
* App lfrfid scenes
* App notification, add yield to blocking operations, add speaker volume control
* App lfrfid: reading key scene
* Assets: placeholder icon
* App lfrfid: reworked container view module
* App lfrfid: new scenes
* App lfrfid: write scene
* App lfrfid: write hid
* App lfrfid: emulate scene
* App lfrfid: save name scene
* App lfrfid: add missing file

applications/lfrfid/view/elements/generic-element.h

@@ -0,0 +1,21 @@
+#pragma once
+#include <gui/gui.h>
+#include <gui/view.h>
+
+class GenericElement {
+public:
+    GenericElement(){};
+    virtual ~GenericElement(){};
+    virtual void draw(Canvas* canvas) = 0;
+    virtual bool input(InputEvent* event) = 0;
+
+    // TODO that must be accessible only to ContainerVMData
+    void set_parent_view(View* view);
+
+    // TODO that must be accessible only to inheritors
+    void lock_model();
+    void unlock_model(bool need_redraw);
+
+private:
+    View* view = nullptr;
+};