Bugfix/confirmed handlers empty service request (#885)

* Added reject in all confirmed service handlers, except GetEventInformation, when confirmed services with zero length occur which rejects with required parameters are missing message.

* Refactored errno use in service using debug_perror. Changed debug_perror usage to debug_fprintf. 

* Updated file and function headers in basic/service modules.

* Changed NDPU priority on confirmed messages to use requested NDPU priority.

* Renamed debug_aprintf to debug_printf_stdout for clarity.

* Convert most debug_fprintf usage to debug_print to reduce text bloat in AVR build

apps/readrange/main.c

@@ -12,7 +12,6 @@
 #include <stdint.h>
 #include <stdio.h>
 #include <stdlib.h>
-#include <errno.h>
 #include <time.h> /* for time */
 #if (__STDC_VERSION__ >= 199901L) && defined(__STDC_ISO_10646__)
 #include <locale.h>