Add a Flavor attribute that can be used for different types of package or build configuration. (e.g. with embedded data rather than content-on-demand)
Remove unused Build struct
Modify "Platforms" (could be renamed in future) control to show Platform or Platform + Flavor for discovered items.
Modify Platforms view to sync the size of all checkboxes by wrapping each one in a Grid.
#rb yuriy.odonnell@epicgames.com
#jira FORT-453980
#ushell-cherrypick of 19981339 by Robert.Millar
#preflight skip
[CL 19981575 by Yuriy ODonnell in ue5-main branch]