Switch to rawWrite for output.

[jondegenhardt]

Switch BufferedOutputRange to use File.rawWrite rather than File.write when writing to file. This has two effects:

• Small performance gain on, up to 10% on some tools, but generally quite small.
• On Windows, writes in binary mode rather than text mode. This means Unix newlines are written rather than Windows newlines.

Regarding Windows newlines - Window is not currently supported, but it is worthwhile moving Windows support forward. A newline policy on Windows is TBD, but writing Unix newlines is an improvement, as it would enable the tools to work with each other in pipelines, and it gets closer to having a working Windows test suite. Updates to Windows newline handling can occur after that. See Issue #310.

[codecov-commenter]

Codecov Report

Merging #314 into master will not change coverage. The diff coverage is 100.00%.

@@           Coverage Diff           @@
##           master     #314   +/-   ##
=======================================
  Coverage   99.36%   99.36%           
=======================================
  Files          18       18           
  Lines        6970     6970           
=======================================
  Hits         6926     6926           
  Misses         44       44           

Impacted Files	Coverage Δ
common/src/tsv_utils/common/utils.d	100.00% <100.00%> (ø)