Merge sides 3 and 9 in UtBS:8

Sides are allied with each other, have no leader, the same team name
and almost identical AI parameters. Having an entire side and AI just
to control 2 units is overkill.
Update Xcode project for new files

Files added in commit 6ebf28bd303a16b5c20a5bada14a1d108b54ada2