Carthaginian mercenaries duplication removal.
Remove duplicated actors from carthaginian civ folder due to redundance of having twice the same infantry in two folders.
carthaginians/infantry_slinger_e.xml > iberians/infantry_slinger_e.xml
carthaginians/infantry_swordsman_e.xml > gauls/infantry_swordsman_e.xml
Also include a fix for an unsync frame of the idle_ready_shieldsmall.dae animation.