feat(fqbn): implement json and sql interface

[lucarin91]

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• Tests for the changes have been added (for bug fixes / features)
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• configuration.schema.json updated if new parameters are added.

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[codecov]

Codecov Report

Attention: Patch coverage is 0% with 27 lines in your changes missing coverage. Please review.

Project coverage is 67.49%. Comparing base (84fc413) to head (fd12f98).

Files with missing lines	Patch %	Lines
pkg/fqbn/sql.go	0.00%	14 Missing ⚠️
pkg/fqbn/json.go	0.00%	13 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #2785      +/-   ##
==========================================
- Coverage   67.57%   67.49%   -0.09%     
==========================================
  Files         238      240       +2     
  Lines       22362    22389      +27     
==========================================
  Hits        15111    15111              
- Misses       6062     6089      +27     
  Partials     1189     1189              

Flag	Coverage Δ
unit	67.49% <0.00%> (-0.09%)	⬇️

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