Abstract version of Risk game.
1. USA Graph done. (tarek)
2. Non AI agent 2 (PassiveAgent) done. (tarek)
3. Non AI agent 4 (nearly pacifist) in progress. (tarek)
4. Egypt Graph done. (youssef)
5. Non AI agent 3 (agressive agent) done. (youssef)
6. Non AI Agent 1 (Human) needs interaction with GUI. (kharadly & osama)