Debug macros replace direct calls to Arduino_DebugUtils

[aentinger]

This allows to configure the level of debug output within the header file and saves space by turning off all those debug messages which are not currently required.

Disable a particular debug output is as easy as replacing

#ifndef DBG_ERROR
  #define DBG_ERROR(fmt, ...) Debug.print(DBG_ERROR, fmt, ## __VA_ARGS__)
#endif

with

#ifndef DBG_ERROR
  #define DBG_ERROR(fmt, ...) //Debug.print(DBG_ERROR, fmt, ## __VA_ARGS__)
#endif

@manchoz I think you'll love that one 😉

[codecov-commenter]

Codecov Report

Merging #164 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #164   +/-   ##
=======================================
  Coverage   95.61%   95.61%           
=======================================
  Files          29       29           
  Lines        1004     1004           
=======================================
  Hits          960      960           
  Misses         44       44           

Impacted Files	Coverage Δ
src/utility/ota/OTALogic.cpp	98.03% <ø> (ø)
src/utility/ota/OTALogic.h	100.00% <ø> (ø)

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