Implement logging for LibSourcify

[marcocastignoli]

• Created the simplest logging library inside LibSourcify (with no deps)
• change the default log level with setLibSourcifyLoggerLevel
• override the whole logging function with setLibSourcifyLogger implementing ILibSourcifyLogger

use the logger inside lib sourcify with logError, logWarn, logInfo, logDebug

@kuzdogan we need to decide what to log inside lib-sourcify

_{View in Huly HI-549}

[kuzdogan]

• Add how to override the logger in lib-sourcify's README

[codecov-commenter]

Codecov Report

Patch coverage: 42.85% and project coverage change: -4.69 ⚠️

Comparison is base (2f74618) 79.27% compared to head (c94cef0) 74.59%.

Additional details and impacted files

@@             Coverage Diff             @@
##           staging    #1082      +/-   ##
===========================================
- Coverage    79.27%   74.59%   -4.69%     
===========================================
  Files           55       65      +10     
  Lines         1520     2389     +869     
  Branches       267      439     +172     
===========================================
+ Hits          1205     1782     +577     
- Misses         182      379     +197     
- Partials       133      228      +95     

Flag	Coverage Δ
lib-sourcify	66.19% <ø> (?)
server	79.26% <42.85%> (-0.01%)	⬇️

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

Impacted Files	Coverage Δ
src/server/server.ts	75.22% <42.85%> (-4.78%)	⬇️

... and 11 files with indirect coverage changes

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[kuzdogan]

Nice!

There needs to be more work on what to log and on which level to log, but we can work on that later as we see the needs.

Just asking for small changes and clarifications.