Added TeamColours component: Automated team designation on mission start.

![arma3 2013-08-27 20-37-33-91](https://f.cloud.github.com/assets/3102221/1037465/39faafe6-0f50-11e3-86a3-c3e773b8346c.png)

FTL/AT == Blue

AR/AAR == Red

Doesn't run for any groups smaller than 3.