Problem authorship

[FherStk]

Related with: https://github.com/DMOJ/online-judge/pull/2298 Related also with: https://github.com/DMOJ/online-judge/issues/144

A new option has been included for attribution purposes, in order to give the authorship to external DMOJ users (like websites, books, etc):

This data will be displayed at the end of the problem statement, just before the license:

Thanks and have a nice Xmas! Fher

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 46.83%. Comparing base (fd7fb05) to head (341d70c). Report is 15 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #2303      +/-   ##
==========================================
+ Coverage   46.76%   46.83%   +0.06%     
==========================================
  Files         251      253       +2     
  Lines       13317    13360      +43     
==========================================
+ Hits         6228     6257      +29     
- Misses       7089     7103      +14     

:umbrella: View full report in Codecov by Sentry.
:loudspeaker: Have feedback on the report? Share it here.

[FherStk]

Ready to merge, changes from #2304 have been integrated :)

[FherStk]

Hi there!

I just integrated your "master" last changes into this branch, and also I finally learned how to squash commits properly (sorry for the delay), so ready to rock'n'roll 😊

I'll keep the branch unmodified till the PR acceptance, but feel free to ask or request as you need if you need further modifications.

Kind regards!