Send ASCII chars from USB serial to selected widget (#1708)

* Initial commit for keyboard emulation
* Added on_keyboard to some widgets
* TextEdit partly
* Multi key send at once
* Frequency control support
* Fix encoder emulation
* Add keyboard to geomap
* More widgets

firmware/application/ui/ui_menu.hpp

@@ -97,6 +97,7 @@ class MenuView : public View {
     void on_blur() override;
     bool on_key(const KeyEvent event) override;
     bool on_encoder(const EncoderEvent event) override;
+    bool on_keyboard(const KeyboardEvent event) override;
 
    private:
     void update_items();