Tweaking council authority

Wei Tang has made a few interesting points in tweaking Kulupu governance settings. In particular:

1. Lowering the Treasury Reject Origin to 1/5. This affects it is easier to reject treasury proposals limiting chances of abuse by the Council.

2. Address a separation of duty between Council and Technical Committee. This affects a collusion risk between these both on-chain institutions.

The key difference with Kusama is that we have somewhat formalized the requirements to be a member of Technical Committee.

I’d like some opinions of our Council on these points in relation to Kusama.

Details:
https://github.com/kulupu/kulupu/pull/41