A 7th U.S. Circuit Court of Appeals revived a civil rights lawsuit Monday brought by a mentally ill prisoner who could not afford to pay the civil filing fee set by federal statute.Maurice Wallace, a prisoner in Menard Corrections Center, appealed to the 7th Circuit after the federal district court ruled that he needed to pay the $400 civil filing fee in order to proceed with his case.Wallace’s lawsuit argues that his 11 years spent in solitary confinement without a hearing violates his right to due process and is …