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/icon-element.cpp

@@ -0,0 +1,25 @@
+#include "icon-element.h"
+
+IconElement::IconElement() {
+}
+
+IconElement::~IconElement() {
+}
+
+void IconElement::draw(Canvas* canvas) {
+    if(name != I_Empty_1x1) {
+        canvas_draw_icon_name(canvas, x, y, name);
+    }
+}
+
+bool IconElement::input(InputEvent* event) {
+    return false;
+}
+
+void IconElement::set_icon(uint8_t _x, uint8_t _y, IconName _name) {
+    lock_model();
+    name = _name;
+    x = _x;
+    y = _y;
+    unlock_model(true);
+}