Library for Sabertooth motor driver ported from the oficial Arduino library. Packetized Serial Mode

I ported the official arduino library for Sabertooth dual motor drivers. In the porting process I did not used const methods as the original library does, but the functionality stays the same. I also added some methods that I find useful. According to the documentation of the driver this code should be compatible with SyRen drivers.

Revision:
0:70797f033fe0
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ArduinoMath.h	Mon Feb 20 11:10:08 2017 +0000
@@ -0,0 +1,18 @@
+#ifndef _ARDUINO_MATH_H_
+#define _ARDUINO_MATH_H_
+
+//those methods do exactly the same things as the corespondent Arduino methods do
+//see the Arduino documentation for more info.
+class ArduinoMath{
+  public:
+    static int constrain(int, int, int);
+    static int min(int, int);
+    static int max(int, int);
+    static int map(int, int, int, int, int);
+    static int abs(int);
+  private:
+    ArduinoMath(){};
+};
+
+#endif
+