Implement AI

[svenstaro]

We'll need AI at some point.

Stuff to consider:

• http://code.google.com/p/recastnavigation/
• neural networks
• genetic algorithms

[clynamen]

Recast implementation is almost ready.
I have some doubts it:

1. Currently the user add the meshes through an AddMesh() method and then builds the map through BuildMap().
   What if an user wants to remove a mesh? The manager may keep track of all added mesh with a vector, and the user may remove meshes through an index or a name.
2. What debug information the Manager should print, save?

[svenstaro]

1. You already posted the solution there didn't you?

2. That's up to you since you are implementing it. I have no idea what is useful for this.