Minor changes to prevent column overrun in fixed-width output files

[rogerfraser]

This pull request fixes #78 by formatting the output of larger-than-expected values, such that they fit within the respective column widths in .adj and .cor files. As the new print function (StringFromTW) is adaptive and time consuming, this formatting is performed when an adjustment appears to be questionable or troublesome (i.e. very large measurement corrections or n-stat values).

[codecov-io]

Codecov Report

Merging #83 (215fb1c) into master (cfd12d8) will decrease coverage by 0.05%.
The diff coverage is 51.44%.

@@            Coverage Diff             @@
##           master      #83      +/-   ##
==========================================
- Coverage   59.31%   59.26%   -0.06%     
==========================================
  Files         117      117              
  Lines       33769    33876     +107     
==========================================
+ Hits        20029    20075      +46     
- Misses      13740    13801      +61     

Impacted Files	Coverage Δ
dynadjust/dynadjust/dnaadjust/dnaadjust.hpp	94.54% <ø> (ø)
dynadjust/include/functions/dnastrmanipfuncs.hpp	69.74% <0.00%> (-9.30%)	⬇️
dynadjust/dynadjust/dnaadjust/dnaadjust.cpp	59.74% <55.97%> (-0.36%)	⬇️
...t/dynadjust/dnaadjustwrapper/dnaadjustprogress.cpp	50.82% <0.00%> (-0.56%)	⬇️
dynadjust/dynadjust/dnaimport/dnainterop.cpp	55.84% <0.00%> (+0.03%)	⬆️
...adjust/dynadjust/dnaplotwrapper/dnaplotwrapper.cpp	73.42% <0.00%> (+2.70%)	⬆️
...st/dynadjust/dnaimportwrapper/dnaimportwrapper.hpp	58.33% <0.00%> (+2.77%)	⬆️

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