How to add a contract level pause feature?

[dckc]

BLD stakers can disable a contract via a 3 day vote, but what if I want something with lower latency?

this has come up in discussion with @Chris-Hibbert and @ivanlei

[dckc]

By way of example:

• Demo of pausing offers in Kread Dapp #8228

The scope of this PR grew to include some other work, but the governance work is in there:

• Add governance in KREAd Kryha/KREAd#3