Expose sort option in picard FastqToSam task

[mjhipp]

Sorting can add a lot of time, I would like to be able to turn it off in some cases.

[codecov-commenter]

Codecov Report

Merging #397 (1feb26c) into master (58065bf) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #397   +/-   ##
=======================================
  Coverage   91.40%   91.40%           
=======================================
  Files          31       31           
  Lines        1187     1187           
  Branches       83       83           
=======================================
  Hits         1085     1085           
  Misses        102      102           

Flag	Coverage Δ
unittests	91.40% <ø> (ø)

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