Move ExtUI subfolders up a level (#21820)

Marlin/src/lcd/extui/dgus/DGUSDisplayDef.h

@@ -0,0 +1,57 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+#pragma once
+
+/**
+ * lcd/extui/dgus/DGUSDisplayDef.h
+ * Defines the interaction between Marlin and the display firmware
+ */
+
+#include "DGUSVPVariable.h"
+
+#include <stdint.h>
+
+// Information on which screen which VP is displayed.
+// As this is a sparse table, two arrays are needed:
+// one to list the VPs of one screen and one to map screens to the lists.
+// (Strictly this would not be necessary, but allows to only send data the display needs and reducing load on Marlin)
+struct VPMapping {
+  const uint8_t screen;
+  const uint16_t *VPList;  // The list is null-terminated.
+};
+
+extern const struct VPMapping VPMap[];
+
+// List of VPs handled by Marlin / The Display.
+extern const struct DGUS_VP_Variable ListOfVP[];
+
+#include "../../../inc/MarlinConfig.h"
+
+#if ENABLED(DGUS_LCD_UI_ORIGIN)
+  #include "origin/DGUSDisplayDef.h"
+#elif ENABLED(DGUS_LCD_UI_MKS)
+  #include "mks/DGUSDisplayDef.h"
+#elif ENABLED(DGUS_LCD_UI_FYSETC)
+  #include "fysetc/DGUSDisplayDef.h"
+#elif ENABLED(DGUS_LCD_UI_HIPRECY)
+  #include "hiprecy/DGUSDisplayDef.h"
+#endif