HPCC-9709 Core in ecl-publish install if package not already installed

Last minute refactoring introduced problem.

Signed-off-by: Richard Chapman <rchapman@hpccsystems.com>
Merge pull request #4647 from richardkchapman/bundle-install-core

HPCC-9709 Core in ecl-publish install if package not already installed

Reviewed-by: Gavin Halliday <ghalliday@hpccsystems.com>