(Chapter 12 case in which debtor motioned to hold bank in contempt for violating automatic stay in attempting to foreclose on property; bank argued that because title to property vested in debtors upon plan confirmation, no stay was in effect; under 11 U.S.C. Sec. 362, stay terminates when discharge is granted or denied; in Chapter 12 case, however, debtor does not receive discharge until all payments under plan have been completed rather than when plan confirmed (as is case in Chapter 11); debtor had not received discharge because all plan payments not completed; automatic stay remained in effect and bank's filing of foreclosure violated automatic stay).