Spawn points should prioritize location hint spawns that do not have enemies nearby

[Andrew Theel]

1. Add a check if an enemy is in a radius of say 1024 (can make it customizable in the SP if desired)
2. If enemy presence, then set the distance associated to the node
3. First node without enemy presence is used. If all of the nodes have enemy within radius, then select the node with the greatest distance.

[Colin Basnett]

Fixed in commit c4970b7.

Location hints with an enemy within 10 meters of them will be checked last when the spawn manager is evaluating potential spawn locations.