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_receiver.cpp

@@ -165,12 +165,18 @@ bool FrequencyField::on_key(KeyEvent event) {
     return false;
 }
 
+bool FrequencyField::on_keyboard(KeyboardEvent key) {
+    if (key == '+' || key == ' ') return on_encoder(1);
+    if (key == '-') return on_encoder(-1);
+
+    return false;
+}
+
 bool FrequencyField::on_encoder(const EncoderEvent delta) {
     if (digit_mode_)
         set_value(value_ + (delta * digit_step()));
     else
         set_value(value_ + (delta * step_));
-
     return true;
 }
 
@@ -321,6 +327,25 @@ void FrequencyKeypadView::on_button(Button& button) {
     update_text();
 }
 
+bool FrequencyKeypadView::on_keyboard(const KeyboardEvent key) {
+    if (key == 8) {
+        digit_delete();
+        update_text();
+        return true;
+    }
+    if (key >= '0' && key <= '9') {
+        digit_add(key);
+        update_text();
+        return true;
+    }
+    if (key == '.') {
+        field_toggle();
+        update_text();
+        return true;
+    }
+    return false;
+}
+
 void FrequencyKeypadView::digit_add(const char c) {
     if (state == State::DigitMHz) {
         if (clear_field_if_digits_entered) {