Post primary task install hook allowing modules to invoke tasks prior to install completion. #141
Description
After the completion of the ImagexInstallKitDefaultsInstallTask has been ran as part of installation, a post installation (once all modules have been installed, etc.) event/hook should be invoked. This would allow modules like the ImageX Workflow to perform tasks where data isn't created until AFTER its installation to occur in cases where it is used within an InstallKit instance.
The specific problem for ImageX Workflow is that that administrator role does not actually exist until AFTER installation and therefore assigning the administrator role by default to the workbench access section (taxonomy vocabulary and terms as default configuration states) cannot occur correctly as the role identifier is unknown (as it is a serial identifier).