Added support for new EnhancedUI MomentaryButton

for Heltec V2 and Faketec ProMicro variants

variants/promicro/target.h

@@ -8,6 +8,7 @@
 #include <helpers/AutoDiscoverRTCClock.h>
 #ifdef DISPLAY_CLASS
   #include <helpers/ui/SSD1306Display.h>
+  #include <helpers/ui/MomentaryButton.h>
 #endif
 
 #include <helpers/sensors/EnvironmentSensorManager.h>
@@ -19,6 +20,7 @@ extern EnvironmentSensorManager sensors;
 
 #ifdef DISPLAY_CLASS
   extern DISPLAY_CLASS display;
+  extern MomentaryButton user_btn;
 #endif
 
 bool radio_init();