JBDS-3607 - Create counter of existing installed items for display on the Confirm page.
JBDS-3607 - Create counter of existing installed items for display on the Confirm page.

dgolovin/developer-platform-install,joshuawilson/developer-platform-install,redhat-developer-tooling/developer-platform-install,dgolovin/developer-platform-install,joshuawilson/developer-platform-install,redhat-developer-tooling/developer-platform-install