Fix the makemon random coord picking again

Fix the makemon random coord picking again

This time try random locations up to 50 times, then start going
through the map in order to find a good position. First round
tries to pick a location not in sight, if that fails, it might
try stair or ladder location. If that fails, then it will pick
any good position, whether in sight or not.

Outside field of vision restriction and trying stair or ladder
locations does not happen when the monster is placed from special
level code.