Support for AnyCubic TriGorilla board (#9551)

Marlin/src/core/boards.h

 #define BOARD_RUMBA             80    // Rumba
 #define BOARD_BQ_ZUM_MEGA_3D    503   // bq ZUM Mega 3D
 #define BOARD_MAKEBOARD_MINI    431   // MakeBoard Mini v2.1.2 is a control board sold by MicroMake
+#define BOARD_TRIGORILLA        343   // TriGorilla Anycubic version 1.3 based on RAMPS EFB
 
 //
 // Other ATmega1280, ATmega2560

Marlin/src/pins/pins.h

   #include "pins_BQ_ZUM_MEGA_3D.h"    // ATmega2560
 #elif MB(MAKEBOARD_MINI)
   #include "pins_MAKEBOARD_MINI.h"    // ATmega2560
+#elif MB(TRIGORILLA)
+  #include "pins_TRIGORILLA.h"        // ATmega2560
 
 //
 // Other ATmega1280, ATmega2560

Marlin/src/pins/pins_TRIGORILLA.h

+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (C) 2016 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 <http://www.gnu.org/licenses/>.
+ *
+ */
+
+/**
+ * Arduino Mega with RAMPS v1.4 for Anycubic
+ *
+ * Defines RAMPS_D44_PIN 44
+ * Defines FAN_PIN RAMPS_D44_PIN or -1
+ */
+
+#ifndef BOARD_NAME
+  #define BOARD_NAME "Anycubic RAMPS 1.4"
+#endif
+
+#define IS_RAMPS_EFB
+
+#include "pins_RAMPS_13.h"
+
+#undef FAN_PIN
+#define RAMPS_D44_PIN      44
+#define FAN_PIN            RAMPS_D44_PIN
+
+#undef ORIG_E0_AUTO_FAN_PIN
+#define ORIG_E0_AUTO_FAN_PIN RAMPS_D44_PIN
+
+#undef E1_STEP_PIN
+#undef E1_DIR_PIN
+#undef E1_ENABLE_PIN
+#undef E1_CS_PIN