Encapsulate common display code in a singleton (#12395)

* Encapsulate common LCD code in a singleton
* Depend more UBL code on UBL_DEVEL_DEBUGGING
  - Since most users don't need the debugging on at all times, this helps reduce the default build size for UBL by over 2K, a little closer to fitting on 128K boards.

Marlin/src/lcd/language/language_es.h

@@ -204,7 +204,7 @@
 #define MSG_INFO_PROTOCOL                   _UxGT("Protocolo")
 #define MSG_CASE_LIGHT                      _UxGT("Luz cabina")
 
-#if LCD_WIDTH > 19
+#if LCD_WIDTH >= 20
   #define MSG_INFO_PRINT_COUNT              _UxGT("Conteo de impresión")
   #define MSG_INFO_COMPLETED_PRINTS         _UxGT("Completadas")
   #define MSG_INFO_PRINT_TIME               _UxGT("Tiempo total de imp.")

Marlin/src/lcd/language/language_zh_CN.h

@@ -324,7 +324,7 @@
 #define MSG_CASE_LIGHT                      _UxGT("外壳灯") // "Case light"
 #define MSG_CASE_LIGHT_BRIGHTNESS           _UxGT("灯亮度") // "Light BRIGHTNESS"
 
-#if LCD_WIDTH > 19
+#if LCD_WIDTH >= 20
   #define MSG_INFO_PRINT_COUNT              _UxGT("打印计数")  //"Print Count"
   #define MSG_INFO_COMPLETED_PRINTS         _UxGT("完成了")  //"Completed"
   #define MSG_INFO_PRINT_TIME               _UxGT("总打印时间")  //"Total print time"

Marlin/src/lcd/language/language_zh_TW.h

@@ -324,7 +324,7 @@
 #define MSG_CASE_LIGHT                      _UxGT("外殼燈") // "Case light"
 #define MSG_CASE_LIGHT_BRIGHTNESS           _UxGT("燈亮度") // "Light BRIGHTNESS"
 
-#if LCD_WIDTH > 19
+#if LCD_WIDTH >= 20
   #define MSG_INFO_PRINT_COUNT              _UxGT("列印計數")  //"Print Count"
   #define MSG_INFO_COMPLETED_PRINTS         _UxGT("已完成")  //"Completed"
   #define MSG_INFO_PRINT_TIME               _UxGT("總列印時間")  //"Total print time"