View source for KDb/Drivers/ODBC

We use "ODBC Driver" term in these papers, although it is all about developing KexiDB-level driver that is built on top of existing lower-level ODBC libraries. So by ODBC Driver we don't mean developing the layer between given database and ODBC protocols. 

Old wiki page: [http://www.kexi-project.org/wiki/wikiview/index.php@ODBCDriver.html] (TODO: migrate here)

There was old unused code in kexidb/drivers/odbs/ directory in Kexi 0.x, quickly disabled, and removed in Sep 2014 in Kexi 2.9.

Status: Experimental, not published, volunteers needed