Add user ability to change time LONGCLICK_MS, DOUBLECLICK_MS, DEBOUNCE_MS during compile time

[cmeldas]

It is useful to let user change LONGCLICK_MS, DOUBLECLICK_MS, DEBOUNCE_MS during compile time.

Suggested change in Button2.h

#ifndef DEBOUNCE_MS
    #define DEBOUNCE_MS      50
#endif
#ifndef LONGCLICK_MS 
    #define LONGCLICK_MS    200
#endif
#ifndef DOUBLECLICK_MS
    #define DOUBLECLICK_MS  300
#endif 

Usage:

#define LONGCLICK_MS    500
#include <Button2.h>

[LennartHennigs]

Hey Matouš,
thank you for your feedback! That’s a really neat idea! I will update the source as you suggested.