2 new AI sprites.

Added Red October AI Core sprite.
Added Xeno Queen AI Hologram sprite.
Modified AI code so players can use the new sprites.
![redoctober](https://f.cloud.github.com/assets/3974988/712453/7c108292-deaa-11e2-9ac2-1e224ede17a1.gif)
![alienholopreview2](https://f.cloud.github.com/assets/3974988/712454/7e8404fe-deaa-11e2-9199-0190a0f09709.png)
![ej3de](https://f.cloud.github.com/assets/3974988/712457/834854a4-deaa-11e2-8534-36543c78a4b7.png)