Add Anet 1.0 to Platformio.ini

Added env:anet10 to platformio.ini for easy compile and upload to this board

Marlin/pins_GT2560_REV_A.h

  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
- 
+
 /**
- * Geeetech GT2560 Revision A board pin assignments, based on the work of 
- * George Robles (https://georges3dprinters.com) and 
+ * Geeetech GT2560 Revision A board pin assignments, based on the work of
+ * George Robles (https://georges3dprinters.com) and
  * Richard Smith <galorin@gmail.com>
- */ 
- 
+ */
+
 #if !defined(__AVR_ATmega1280__) && !defined(__AVR_ATmega2560__)
   #error "Oops!  Make sure you have 'Arduino Mega' selected from the 'Tools -> Boards' menu."
 #endif
 
   #define BEEPER_PIN       18
 
-  #if ENABLED(NEWPANEL)       
+  #if ENABLED(NEWPANEL)
 
     #define LCD_PINS_RS    20
     #define LCD_PINS_ENABLE 17
     #define BTN_EN1        42
     #define BTN_EN2        40
     #define BTN_ENC        19
-    
+
     #define SD_DETECT_PIN  38
 
   #else // !NEWPANEL

Marlin/pins_GT2560_REV_A_PLUS.h

  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
- 
+
 /**
  * Geeetech GT2560 Revision A+ board pin assignments
- */ 
+ */
 
 #include "pins_GT2560_REV_A.h"
 
 #define BOARD_NAME  "GT2560 Rev.A+"
 
-#define SERVO0_PIN  11 
+#define SERVO0_PIN  11

platformio.ini

 build_flags = -I $BUILDSRC_DIR
 board_f_cpu = 16000000L
 lib_deps = ${common.lib_deps}
+
+[env:anet10]
+platform = atmelavr
+framework = arduino
+board = sanguino_atmega1284p
+upload_speed = 57600
+lib_deps = ${common.lib_deps}