wrap wiringPiISRStop() in driver API

I think I found the equivalent to `detachInterrupt()` in wiringPi lib. Its not documented, but `wiringPiISRStop()` is used in wiringPi lib's examples.

utility/wiringPi/interrupt.h

@@ -7,8 +7,6 @@
 #include <wiringPi.h>
 
 #define attachInterrupt wiringPiISR
-
-// wiringPi has no detachInterrupt() implementation. Therefor, we will not define it here.
-// Invoking detachInterrupt() with this wiringPi driver/wrapper should trigger compilation errors
+#define detachInterrupt wiringPiISRStop
 
 #endif // RF24_UTILITY_WIRINGPI_INTERRUPT_H__