Fix renaming for better PR readability.

Author: dok-net

libraries/ESP32/examples/GPIO/FunctionalInterrupt/FunctionalInterrupt.ino renamed to libraries/ESP32/examples/GPIO/Functional/Functional.ino

@@ -1,6 +1,6 @@
 #include <Arduino.h>
 #include "Schedule.h"
-#include "FunctionalInterrupts.h"
+#include "FunctionalInterrupt.h"
 
 #if defined(ESP32)
 #define BUTTON1 16

libraries/ESP32/examples/GPIO/FunctionalInterrupt/FunctionalInterrupts.cpp renamed to libraries/ESP32/examples/GPIO/Functional/FunctionalInterrupt.cpp

@@ -1,4 +1,4 @@
-#include "FunctionalInterrupts.h"
+#include "FunctionalInterrupt.h"
 #include "Schedule.h"
 #include <Arduino.h>
 

libraries/ESP32/examples/GPIO/FunctionalInterrupt/FunctionalInterrupts.h renamed to libraries/ESP32/examples/GPIO/Functional/FunctionalInterrupt.h

@@ -1,5 +1,5 @@
-#ifndef FUNCTIONALINTERRUPTS_H
-#define FUNCTIONALINTERRUPTS_H
+#ifndef FUNCTIONALINTERRUPT_H
+#define FUNCTIONALINTERRUPT_H
 
 #include <functional>
 
@@ -34,4 +34,4 @@ void attachInterrupt(uint8_t pin, std::function<void(void)> intRoutine, int mode
 void attachScheduledInterrupt(uint8_t pin, std::function<void(InterruptInfo)> scheduledIntRoutine, int mode);
 void detachFunctionalInterrupt(uint8_t pin);
 
-#endif //INTERRUPTS_H
+#endif //FUNCTIONALINTERRUPT_H