Add filament runout sensor menu item (#11971)

Marlin/src/feature/runout.cpp

 
 FilamentRunoutSensor runout;
 
-bool FilamentRunoutSensor::filament_ran_out; // = false
+bool FilamentRunoutSensor::enabled = true,
+     FilamentRunoutSensor::filament_ran_out; // = false
 uint8_t FilamentRunoutSensor::runout_count; // = 0
 
 void FilamentRunoutSensor::setup() {

Marlin/src/feature/runout.h

 
 class FilamentRunoutSensor {
   public:
+    static bool enabled;
+
     FilamentRunoutSensor() {}
 
     static void setup();
     static uint8_t runout_count;
 
     FORCE_INLINE static bool check() {
+      if (!enabled) return false;
       #if NUM_RUNOUT_SENSORS < 2
         // A single sensor applying to all extruders
         const bool is_out = READ(FIL_RUNOUT_PIN) == FIL_RUNOUT_INVERTING;

Marlin/src/lcd/language/language_en.h

   #define MSG_CASE_LIGHT                      _UxGT("Case light")
 #endif
 #ifndef MSG_CASE_LIGHT_BRIGHTNESS
-  #define MSG_CASE_LIGHT_BRIGHTNESS           _UxGT("Light BRIGHTNESS")
+  #define MSG_CASE_LIGHT_BRIGHTNESS           _UxGT("Light Brightness")
 #endif
 #if LCD_WIDTH >= 20
   #ifndef MSG_INFO_PRINT_COUNT
 #ifndef MSG_FILAMENT_CHANGE_NOZZLE
   #define MSG_FILAMENT_CHANGE_NOZZLE          _UxGT("  Nozzle: ")
 #endif
+#ifndef MSG_RUNOUT_SENSOR_ENABLE
+  #define MSG_RUNOUT_SENSOR_ENABLE            _UxGT("Runout Sensor")
+#endif
 #ifndef MSG_ERR_HOMING_FAILED
   #define MSG_ERR_HOMING_FAILED               _UxGT("Homing failed")
 #endif

Marlin/src/lcd/ultralcd.cpp

   #include "../feature/leds/leds.h"
 #endif
 
+#if ENABLED(FILAMENT_RUNOUT_SENSOR)
+  #include "../feature/runout.h"
+#endif
+
 #if DISABLED(LCD_USE_I2C_BUZZER)
   #include "../libs/buzzer.h"
 #endif
       MENU_ITEM(submenu, MSG_BLTOUCH, bltouch_menu);
     #endif
 
+    #if ENABLED(FILAMENT_RUNOUT_SENSOR)
+      MENU_ITEM_EDIT(bool, MSG_RUNOUT_SENSOR_ENABLE, &runout.enabled);
+    #endif
+
     #if DISABLED(SLIM_LCD_MENUS)
       // Preheat configurations
       MENU_ITEM(submenu, MSG_PREHEAT_1_SETTINGS, lcd_configuration_temperature_preheat_material1_settings_menu);