Add pin configuration for Brainwave Pro

Copied from jcrocholl's contributions to the OpenBeamUSA Marlin fork

Marlin/pins.h

@@ -76,6 +76,8 @@
   #include "pins_PRINTRBOARD.h"
 #elif MB(BRAINWAVE)
   #include "pins_BRAINWAVE.h"
+#elif MB(BRAINWAVE_PRO)
+  #include "pins_BRAINWAVE_PRO.h"
 #elif MB(SAV_MKI)
   #include "pins_SAV_MKI.h"
 #elif MB(TEENSY2)

Marlin/pins_BRAINWAVE_PRO.h

@@ -0,0 +1,63 @@
+/**
+ * Brainwave Pro pin assignments (AT90USB186)
+ *
+ * Requires hardware bundle for Arduino:
+ * https://github.com/unrepentantgeek/brainwave-arduino
+ */
+
+#ifndef __AVR_AT90USB1286__
+  #error Oops!  Make sure you have 'Brainwave Pro' selected from the 'Tools -> Boards' menu.
+#endif
+
+#ifndef AT90USBxx_TEENSYPP_ASSIGNMENTS  // use Teensyduino Teensy++2.0 pin assignments instead of Marlin alphabetical.
+  #error  Uncomment #define AT90USBxx_TEENSYPP_ASSIGNMENTS in fastio.h for this config
+#endif
+
+#define AT90USB 1286  // Disable MarlinSerial etc.
+
+#define X_STEP_PIN         33
+#define X_DIR_PIN          32
+#define X_ENABLE_PIN       11
+#define X_STOP_PIN         47
+
+#define Y_STEP_PIN         31
+#define Y_DIR_PIN          30
+#define Y_ENABLE_PIN        8
+#define Y_STOP_PIN         18
+
+#define Z_STEP_PIN         29
+#define Z_DIR_PIN          28
+#define Z_ENABLE_PIN       37
+#define Z_MAX_PIN          36
+#define Z_MIN_PIN          17  // Bed probe
+
+#define E0_STEP_PIN        35
+#define E0_DIR_PIN         34
+#define E0_ENABLE_PIN      13
+
+#define HEATER_0_PIN       15
+#define HEATER_1_PIN       -1
+#define HEATER_2_PIN       -1
+#define HEATER_BED_PIN     14  // Bed
+#define FAN_PIN            16  // Fan, PWM
+
+#define TEMP_0_PIN          2  // Extruder / Analog pin numbering
+#define TEMP_1_PIN          1  // Spare / Analog pin numbering
+#define TEMP_2_PIN         -1
+#define TEMP_BED_PIN        0  // Bed / Analog pin numbering
+
+#define SDPOWER            -1
+#define SDSS               20
+#define LED_PIN            19
+#define PS_ON_PIN          -1
+#define KILL_PIN           -1
+#define ALARM_PIN          -1
+#define SDCARDDETECT       12
+
+#ifndef SDSUPPORT
+// these pins are defined in the SD library if building with SD support
+  #define SCK_PIN          21
+  #define MISO_PIN         23
+  #define MOSI_PIN         22
+#endif
+