(#16) Add commit filters

[llorllale]

PR for #16

• New filters package
• New issues package
• Left puzzle to fix the coverage check

[codecov]

Codecov Report

Merging #17 into master will decrease coverage by 2.11%.
The diff coverage is 83.67%.

@@            Coverage Diff            @@
##           master     #17      +/-   ##
=========================================
- Coverage   84.61%   82.5%   -2.12%     
=========================================
  Files           2       4       +2     
  Lines          52      80      +28     
=========================================
+ Hits           44      66      +22     
- Misses          4       8       +4     
- Partials        4       6       +2

Impacted Files	Coverage Δ
internal/commits/commits.go	80.64% <66.66%> (-6.32%)	⬇️
internal/commits/filter/filter.go	81.81% <81.81%> (ø)
internal/commits/issues/issues.go	90.47% <90.47%> (ø)

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[codecov]

Codecov Report

Merging #17 into master will increase coverage by 0.38%.
The diff coverage is 87.75%.

@@           Coverage Diff           @@
##           master   #17      +/-   ##
=======================================
+ Coverage   84.61%   85%   +0.38%     
=======================================
  Files           2     4       +2     
  Lines          52    80      +28     
=======================================
+ Hits           44    68      +24     
- Misses          4     6       +2     
- Partials        4     6       +2

Impacted Files	Coverage Δ
internal/commits/commits.go	87.09% <100%> (+0.14%)	⬆️
internal/commits/filter/filter.go	81.81% <81.81%> (ø)
internal/commits/issues/issues.go	90.47% <90.47%> (ø)

---

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