Function SCIPapplyLockFixings 

pub unsafe extern "C" fn SCIPapplyLockFixings(
    scip: *mut SCIP,
    heurdata: *mut SCIP_HEURDATA,
    cutoff: *mut c_uint,
    allrowsfulfilled: *mut c_uint,
) -> SCIP_RETCODE

apply fix-and-propagate scheme based on variable locks

@note probing mode of SCIP needs to be enabled before