Upgrading FW Gallery to v5.0.0: one for all

FW Gallery 5.0.0 is a major release focused on the new component architecture. It serves as a basic model for all subsequent FW Gallery releases and works as a single platform with a set of add-ons that are allocated into two packages corresponding to the former Light and Grand versions. Add-ons are FW Gallery specific Joomla extensions (modules, plugins, data type, and design).