Add cheater AI

[sirgwain]

For extra difficulty, add a cheater AI mode with AI races using better than possible race designs.

from @Ken

        Name:       "Waaagh!",
        PluralName: "Waaagh!",
        PRT:        cs.JoaT,
        LRTs:       cs.Bitmask(cs.IFE) | cs.Bitmask(cs.ISB) | cs.Bitmask(cs.OBRM),
        HabLow: cs.Hab{
            Temp: 15,
            Rad: 15,
        },
        HabHigh: cs.Hab{
            Temp: 85,
            Rad: 85,
        },
        ImmuneGrav:    true,
        GrowthRate:    20,
        PopEfficiency: 8,
        FactoryOutput: 13,
        FactoryCost:   5,
        NumFactories:  15,
        MineOutput:    13,
        MineCost:      2,
        NumMines:      15,
        ResearchCost: cs.ResearchCost{
            Energy:        cs.ResearchCostStandard,
            Weapons:       cs.ResearchCostLess,
            Propulsion:    cs.ResearchCostStandard,
            Construction:  cs.ResearchCostLess,
            Electronics:   cs.ResearchCostStandard,
            Biotechnology: cs.ResearchCostMore,
        },
    },

[sirgwain]

whoops, duplicate: https://github.com/sirgwain/craig-stars/issues/153