ODBC Support

**What's your use case?**
I would like to connect through oledb to an existing database (MonetDB here)

Well, I can't connect to the said database :)

**What's your proposed solution?**
The SQL Table Widget should allow a connection through ODBC

**Are there any alternative solutions?**
Using excel to export data in file... but it's an alternative like coca cola is an alternative to coffee.

Start by locating the SQL Table Widget and its existing database connection path, then determine how ODBC and the stated MonetDB use case fit into the project. Done means the widget can connect through ODBC to an existing database and the relevant connection behavior is covered by appropriate tests.

Written by the indexing model from the issue text.