Add ODBC Transport

[abmusse]

Part of the overall #26 issue.

[ThePrez]

I approve once @kadler's concerns are addressed

[abmusse]

@kadler

I have added the requested changes, is this PR looking good now?

If so I will squash the 2 latest commits.

[abmusse]

@kadler
I have added the latest suggestions and squashed those changes.

[kadler]

LGTM

[abmusse]

Added connection.close() to close connection

...
    connection.close((closeError) => {
      if (closeError) {
        done(closeError, null);
        return;
      }

      if (!results) {
        done('Empty result set was returned', null);
        return;
      }

      let xmlOutput = '';

      results.forEach((chunk) => {
        xmlOutput += chunk.OUT151;
      });

      done(null, xmlOutput);
    });