Add @bisaloo as an author and @pratikunterwegs as a contributor

[seabbs]

This PR adds @Bisaloo as a package author and @pratikunterwegs as a contributor and reorders the DESCRIPTION to go authors and then contributors. I may have missed people who should be credited here so please make suggestions.

@Bisaloo and @pratikunterwegs if you could both confirm you are fine to be added here that would be great.

[codecov]

Codecov Report

Merging #225 (d56e6b7) into develop (4c760f6) will not change coverage.
The diff coverage is n/a.

❗ Current head d56e6b7 differs from pull request most recent head c836b2c. Consider uploading reports for the commit c836b2c to get more accurate results

@@           Coverage Diff            @@
##           develop     #225   +/-   ##
========================================
  Coverage    97.30%   97.30%           
========================================
  Files           14       14           
  Lines         1524     1524           
========================================
  Hits          1483     1483           
  Misses          41       41           

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[pearsonca]

one consistency note, but technically fine

[adrian-lison]

Great to have new contributors/authors :)