REDCORE-177_add_dependancy_handler for redCORE
exclude lazy load javascript from packager
Added support for SQL translations with multiple unions
Added SEF links to the language switcher (when alias is translated, it will now link directly to that language SEF link)
Added dependency requirements in the installer preflight
Changed way redCORE is installed if present as a submodule, now system will install redCORE first before installing extension
Restricted downgrading redCORE if installed version is newer that the one user is trying to install
Added layout output at the end of the installation of every extension. It will output requirements and installed modules / plugins. Added option to disable output if needed