Add /pass command

[ryukinix]

CHANGELOG:

• Add /pass command
• It only works when called from commonlispbr admins (currently hardcoded, I can change it later)
• Learned: There is no built-in remove function for slices in golang

[ryukinix]

Codecov Report

Merging #6 into master will decrease coverage by 16.60%.
The diff coverage is 3.22%.

@@             Coverage Diff             @@
##           master       #6       +/-   ##
===========================================
- Coverage   93.52%   76.92%   -16.61%     
===========================================
  Files           1        1               
  Lines         139      169       +30     
===========================================
  Hits          130      130               
- Misses          9       39       +30     

Flag	Coverage Δ
#unittests	76.92% <3.22%> (-16.61%)	⬇️

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Impacted Files	Coverage Δ
troll_shield.go	76.92% <3.22%> (-16.61%)	⬇️

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[luksamuk]

LGTM

[ryukinix]

The unit tests was not written before the PR was merged. That should be addressed in the next contribution.