DB2 installer for dev/test VM

Chaps,

For your consideration...

As I want to get a fully functioning test VM for the Teradata updates (in case of core fixes) I've created an installer for DB2 Express-C for the VM. It's much along the lines of the Oracle shell script.

Not knowing much at all about Chef I've added the provisioning it straight to the Vagrantfile.

One known issue if that it doesn't make the JDBC driver available to the build (I copy it to dist/lib in the script but this just gets blitzed by the build) as I can't put stuff onto your S3 area (and know almost nothing about how to configure gradle anyway).

This is my first github pull request so hope I'm not breaking any etiquette!

Cheers,

Mark