SPRINGFIELD — Illinois’ two-week-old ban on semiautomatic weapons outlaws “ubiquitous” firearms in “radical” defiance of the Constitution’s Second Amendment, a federal lawsuit filed by the National Rifle Association Tuesday claims.The powerful NRA joined a parade of gun-rights activists seeking to toss out the newly minted prohibition on dozens of rapid-fire pistols and long guns, as well as large-capacity magazines or attachments.Democratic Gov. J.B. Pritzker signed the law Jan …