A rocket hit an Italian UNIFIL base in Lebanon Thursday but there were no injuries.     This afternoon, a rocket, the origin of which is still being determined, hit the Shama base, headquarters of the Italian contingent and UNIFIL Western Sector.     No injuries were reported among Italian soldiers.     Only minor damage to infrastructure was reported.     Defense Minister Guido Crosetto is in contact with the Chief of Defense Staff, the Commander of COVI, and the Commander of the Italian