Mark tokens as stable + stability + ignored (implied)

[robcxyz]

@hetfly

Please give me list of tokens + addresses that are stable

Only bnusd for now is ignored

Add these cols stable + stability + ignored

[robcxyz]

Keep list and put up some docs about how to update (ie PR)

[hetfly]

[
  {
    address: cx22319ac7f412f53eabe3c9827acf5e27e9c6a95f,
    stable: true,
    stability: true
  },
  {
    address: cxf0a30d09ade391d7b570908b9b46cfa5b3cbc8f8,
    stable: true,
    stability: true
  }
]

allow for adding or updating tokens through PRs