fix large object / array / container printer

[srz-zumix]

fix #295

[codecov]

Codecov Report

Merging #327 into develop will increase coverage by <.01%.
The diff coverage is 100%.

@@             Coverage Diff             @@
##           develop     #327      +/-   ##
===========================================
+ Coverage    96.12%   96.12%   +<.01%     
===========================================
  Files          211      211              
  Lines        10377    10381       +4     
===========================================
+ Hits          9975     9979       +4     
  Misses         402      402

Impacted Files	Coverage Δ
test/printers_tests.cpp	97.94% <100%> (+0.05%)	⬆️
test/matcher_tests.cpp	95.98% <100%> (ø)	⬆️
include/iutest_printers.hpp	99.29% <100%> (ø)	⬆️

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