Refactor of CAPIO log component

[marcoSanti]

This pull request removes the Logger component, and the server_println function, replacing it with an external logging tool.
By moving to the new logging tool, CAPIO changes the structure of logfiles from non structured data, to a JSON based logging format.

[codecov]

Codecov Report

❌ Patch coverage is 57.40741% with 23 lines in your changes missing coverage. Please review.
✅ Project coverage is 62.75%. Comparing base (6b14036) to head (3181f73).

Files with missing lines	Patch %	Lines
capio/posix/libcapio_posix.cpp	37.50%	3 Missing and 2 partials ⚠️
capio/server/src/cli_parser.cpp	60.00%	0 Missing and 4 partials ⚠️
capio/server/src/mpi_backend.cpp	0.00%	2 Missing and 2 partials ⚠️
capio/server/include/remote/listener.hpp	40.00%	0 Missing and 3 partials ⚠️
capio/common/env.hpp	0.00%	0 Missing and 2 partials ⚠️
capio/common/shm.hpp	33.33%	1 Missing and 1 partial ⚠️
capio/server/include/utils/signals.hpp	60.00%	0 Missing and 2 partials ⚠️
capio/server/capio_server.cpp	80.00%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #239      +/-   ##
==========================================
- Coverage   63.43%   62.75%   -0.68%     
==========================================
  Files          79       77       -2     
  Lines        3268     3037     -231     
  Branches     2008     1904     -104     
==========================================
- Hits         2073     1906     -167     
+ Misses        397      375      -22     
+ Partials      798      756      -42     

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