Add implementation for Josephus Problem solver

[Kalkwst]

• I have performed a self-review of my code
• My code follows the style guidelines of this project
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Comments in areas I changed are up to date
• I have added comments to hard-to-understand areas of my code
• I have made corresponding changes to the README.md

[codecov]

Codecov Report

Base: 95.66% // Head: 95.67% // Increases project coverage by +0.00% 🎉

Coverage data is based on head (7c9f1db) compared to base (8d0729b).
Patch coverage: 100.00% of modified lines in pull request are covered.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #356   +/-   ##
=======================================
  Coverage   95.66%   95.67%           
=======================================
  Files         209      210    +1     
  Lines        8699     8713   +14     
=======================================
+ Hits         8322     8336   +14     
  Misses        377      377           

Impacted Files	Coverage Δ
Algorithms/Numeric/JosephusProblem.cs	100.00% <100.00%> (ø)

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[siriak]

Please fix the PR check so that I could merge. It seems that tests are failing

[Kalkwst]

Please fix the PR check so that I could merge. It seems that tests are failing

Fixed

[siriak]

Looks good, thanks!