FL-528 GUI: View, ViewDispather. Dolphin: first start. (#276)

* GUI: view. Flooper-blooper fix compilation error.
* GUI: view and viewdispatcher bones
* GUI: view implementation, view models, view dispatcher
* GUI: view navigation, model refinement. Power: use view, view dispatcher.
* HAL Flash: proper page write. Dolphin: views. Power: views
* Dolphin: transition idle scree to Views
* Dolphin: input events on stats view. Format sources.
* HAL: flash erase. Dolphin: permanent state storage.
* Dolphin: first start welcome. HAL: flash operation status, errata 2.2.9 crutch.

applications/gui/canvas.h

@@ -3,6 +3,7 @@
 #include <stdint.h>
 #include <u8g2.h>
 #include <gui/icon.h>
+#include <assets_icons_i.h>
 
 typedef enum {
     ColorWhite = 0x00,
@@ -46,10 +47,15 @@ void canvas_set_font(Canvas* canvas, Font font);
 void canvas_draw_str(Canvas* canvas, uint8_t x, uint8_t y, const char* str);
 
 /*
- * Draw icon at position defined by x,y.
+ * Draw stateful icon at position defined by x,y.
  */
 void canvas_draw_icon(Canvas* canvas, uint8_t x, uint8_t y, Icon* icon);
 
+/*
+ * Draw stateless icon at position defined by x,y.
+ */
+void canvas_draw_icon_name(Canvas* canvas, uint8_t x, uint8_t y, IconName name);
+
 /*
  * Draw xbm icon of width, height at position defined by x,y.
  */