'Dukes of Hazzard' Star John Schneider's Ex Says He Owes $1 Million

'Dukes of Hazzard' star John Schneider is one stingy son of a gun, according to his ex-wife ... who claims he owes her 7 figures and she's taking extreme measures to get it. John's ex, Elvira Schneider, claims the actor owes her more than $1…