Add "Audited" logo for vault or strat contracts with audits.

[sirbeefalot]

As the first batches of audits start to come out, we will begin to have more strategies and vaults with Certiik audits.

It would be good to have a place in our UI to show that certain contracts are audited.

We might have to do a separation between the vault contract being audited, and the strategy contract being audited.

I've seen a few requests to show the vault/strategy addresses in the UI with links to bscscan. Maybe this is the time to add them and add the little shield when relevant.