Reorganize some core headers (#11983)

Marlin/src/inc/MarlinConfig.h

@@ -19,9 +19,11 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
-#ifndef _MARLIN_CONFIG_H_
-#define _MARLIN_CONFIG_H_
+//
+// Prefix header for all Marlin sources
+//
 
 #include "MarlinConfigPre.h"
 
@@ -43,6 +45,3 @@
 #include "../core/language.h"
 #include "../core/utility.h"
 #include "../core/serial.h"
-#include "../core/minmax.h"
-
-#endif // _MARLIN_CONFIG_H_

Marlin/src/inc/MarlinConfigPre.h

@@ -19,19 +19,20 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
-#ifndef _MARLIN_CONFIGPRE_H_
-#define _MARLIN_CONFIGPRE_H_
+//
+// Prefix header to acquire configurations
+//
 
 #include "../HAL/platforms.h"
 #include "../core/boards.h"
-#include "../core/macros.h"
 #include "../core/types.h"
+#include "../core/config.h"
 #include "Version.h"
 #include "../../Configuration.h"
 #include "Conditionals_LCD.h"
 #include "../core/drivers.h"
 #include "../../Configuration_adv.h"
 #include "Conditionals_adv.h"
-
-#endif // _MARLIN_CONFIGPRE_H_
+#include "../core/macros.h"

Marlin/src/inc/Version.h

@@ -23,7 +23,7 @@
 #ifndef _VERSION_H_
 #define _VERSION_H_
 
-#include "../core/macros.h" // for ENABLED
+#include "../core/config.h" // for ENABLED
 
 /**
  * This file is the standard Marlin version identifier file.