Add --config option

[k1LoW]

• Add --config ( -c ) option

[codecov]

Codecov Report

Merging #71 into master will increase coverage by 0.45%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master      #71      +/-   ##
==========================================
+ Coverage   73.92%   74.38%   +0.45%     
==========================================
  Files           8        8              
  Lines        1557     1538      -19     
==========================================
- Hits         1151     1144       -7     
+ Misses        298      290       -8     
+ Partials      108      104       -4

Impacted Files	Coverage Δ
schema/schema.go	47.34% <100%> (+0.96%)	⬆️

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