Improve Aragon Deployment Infrastructure

[lkngtn]

It would be useful to improve and potentially automate deployment of the Aragon environment on compatible chains including other testnets.

We could also maintain deployments on other production chains and possible get funding from those chains respective ecosystems:

• https://www.xdaichain.com/for-developers/grants/xdai-adoption-fund
• https://fund.rsk.co

[0xGabi]

I think this is aligned with discussion on refactor aragen to become a more powerful tool to help deploy a whole environment. For reference: aragon/aragen#95