mixed wizlist_info()

Returns an array of arrays, where very subarray represents an entry in the
wizlist which consists of seven variables.
w[0]=wizard's name.
w[1]=total number of commands executed by his/her objects.
     Saved between reboots and decaying 1% per hour.
w[2]=total eval_cost. Decaying 10% per hour.
w[3]=total heart_beats. Decaying 10% per hour.
w[4]=reserved.
w[5]=total size of used arrays.
w[6]=the extra svalue. If it is an array, it will be copied.

See also: wizlist, set_extra_wizinfo, get_extra_wizinfo.
