By Andrea Shalal WASHINGTON (Reuters) – U.S. and European officials are finalizing an extensive package of sanctions if Russia invades Ukraine that targets major Russian banks, but does not include banning Russia from the SWIFT financial system, according to U.S. and European officials. The sanctions on the table also include export controls on components produced by Russia for the tech and weapons sectors, and sanctions against specific Russian oligarchs, according to three sources familiar with the discussions. One U.S. official said the Russian banks targeted with sanctions could include st…