Run query and format as MediaWiki table

Summary:
The code is structured with a more modular approach,
so we can create in the future more connectors and output formats.

The first connector allows to query MariaDB/MySQL.
The first output format allows to output a MediaWiki table.

Ref T2124

Test Plan:

• Updated old content report: https://agora.nasqueron.org/?diff=1949
• Build package, install, try imports
• echo "Project\tDescription\nnasqueron-reports\tReporting" | sql-result-to-mediawiki-table

Reviewers: dereckson

Reviewed By: dereckson

Maniphest Tasks: T2124

Differential Revision: https://devcentral.nasqueron.org/D3668