PM-82 : When deploying from an existing jar, the start script has a generic...

What was done

• When deploying from an existing jar, the start script has a generic name without the inventory included (e.g. mpe-pm-api-server). In this role, we assume that the start script always does have the inventory in the name (e.g. mpe-pm-api-server-test), so we add the ability to override this name.