BUX-202: Logging

[Nazarii-4chain]

Pull Request Checklist

• 📖 I created my PR using provided : CODE_STANDARDS
• 📖 I have read the short Code of Conduct: CODE_OF_CONDUCT
• 🏠 I tested my changes locally.
• ✅ I have provided tests for my changes.
• 📝 I have used conventional commits.
• 📗 I have updated any related documentation.
• 💾 PR was issued based on the Github or Jira issue.

Added logger

[mergify]

Welcome to our open-source project @Nazarii-4chain! 💘

[codecov]

Codecov Report

Attention: 180 lines in your changes are missing coverage. Please review.

Comparison is base (0dc9233) 40.36% compared to head (a987fe8) 41.30%.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #168      +/-   ##
==========================================
+ Coverage   40.36%   41.30%   +0.93%     
==========================================
  Files          16       17       +1     
  Lines        2492     2668     +176     
==========================================
+ Hits         1006     1102      +96     
- Misses       1400     1477      +77     
- Partials       86       89       +3     

Flag	Coverage Δ
unittests	41.30% <14.69%> (+0.93%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files	Coverage Δ
logger/logger.go	100.00% <100.00%> (ø)
transports/errors.go	83.33% <100.00%> (+0.57%)	⬆️
transports/transports.go	75.75% <33.33%> (-4.25%)	⬇️
transactions.go	48.48% <0.00%> (-4.85%)	⬇️
buxclient.go	80.48% <42.85%> (-3.52%)	⬇️
transports/authentication.go	54.49% <10.52%> (-5.65%)	⬇️
transports/graphql_admin.go	5.65% <4.00%> (-0.08%)	⬇️
transports/http_admin.go	4.88% <0.00%> (-0.51%)	⬇️
transports/graphql.go	52.70% <11.11%> (+3.82%)	⬆️
transports/http.go	34.33% <13.75%> (+1.49%)	⬆️

... and 1 file with indirect coverage changes

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[arkadiuszos4chain]

After a short discussion, the team has decided to completely remove logs from the library. Please review if we can also eliminate the debug flag.