changes by July 4th

[RoccoPaolillo]

• [ ] sustainable-tax invested: on own profit (renewable energies) (sustainable-tax own_profit[0,1]), common pool (sustainable-tax (1-own_profit))
• [ ] common pool must be a shared resource container (e.g. water) to be used e.g. for sudden drought manipulated externally by modeller
• [ ] renewable resources: own_profit + constant
• [ ] several item typology (e.g. industry, vegetation...) that consume differently water (in-radius)
• [ ] consume common resources: delete the 4 regions, put different items per group and in-radius of the different common resources spent