Crashes when Players 9-11 own units on the map

[heinermann]

When units owned by players 9, 10, and 11 are detected by BWAPI, the frontend crashes. I don't think we are generating Player objects for these players.

The same will probably occur for extended players which can exist in 1.16.1 (Player 13+) which don't actually exist, but are used in some cases to exploit buffer overflows in a tiny fraction of maps.