Prototype AI Character and Crowd Spawning BP

I brought in the third person character files from the unreal example to
use and build the code for the AI. I also built a CrowdSpawn BP to
replicate a given number of them in a certain radius of a point
Crowd Spawning BluePrints and Sound Effects

So I made a blueprint that will allow you to spawn as many or as little
npcs as you want in a area that you set. I also added sound effects to
the seagull, they will need some work in the future.
Merge with master
Merge branch 'master' into DesignTeam