Generalise `*AlreadyInUF3P` text somewhat.

Making the text applicable to mods that are not strictly included in
UF3P, but which have their fixes also fixed in the UF3P by other means.

loot/fallout3#5 is asking for translations to Russian and Spanish.
The FireLightFix[_rus].esp fixes are already in UF3P.

http://forums.nexusmods.com/index.php?/topic/1017954-updated-unofficial-fallout-3-patch/?p=17760244