[FL-1549] Gui Widget module (#598)

* gui_widget: rework with mlib container
* widget: rename gui_widget-> widget; gui_element->widget_element
* gui: move widget from nfc to gui/modules
* nfc: rework widget usage
* nfc: return to ReadEmvAppSuccess scene after ReadEmvDataSuccess exit

Co-authored-by: あく <alleteam@gmail.com>

applications/gui/modules/widget_elements/widget_element_i.h

@@ -0,0 +1,48 @@
+#pragma once
+#include <furi.h>
+#include <gui/view.h>
+
+typedef enum {
+    GuiButtonTypeLeft,
+    GuiButtonTypeCenter,
+    GuiButtonTypeRight,
+} GuiButtonType;
+
+typedef void (*ButtonCallback)(GuiButtonType result, void* context);
+
+typedef struct WidgetElement WidgetElement;
+typedef struct Widget Widget;
+
+struct WidgetElement {
+    // generic draw and input callbacks
+    void (*draw)(Canvas* canvas, WidgetElement* element);
+    bool (*input)(InputEvent* event, WidgetElement* element);
+
+    // free callback
+    void (*free)(WidgetElement* element);
+
+    // generic model holder
+    void* model;
+
+    // pointer to widget that hold our element
+    Widget* parent;
+};
+
+/* Create string element */
+WidgetElement* widget_element_string_create(
+    uint8_t x,
+    uint8_t y,
+    Align horizontal,
+    Align vertical,
+    Font font,
+    const char* text);
+
+/* Create button element */
+WidgetElement* widget_element_button_create(
+    GuiButtonType button_type,
+    const char* text,
+    ButtonCallback callback,
+    void* context);
+
+/* Create icon element element */
+WidgetElement* widget_element_icon_create(uint8_t x, uint8_t y, const Icon* icon);