Arbitrum DAO KYC

[Tritium-VLK]

Setup Multisig for handling $ARB from the DAO grant.

Requires a majority of signers to KYC with Arbitrum (but not otherwise dox).

KYCed signers will be named as kycsigner1 - kycsigner3.

I certify that these are 3 different people all of whom are connected to Balancer. The Arbitrum KYC process will do the same.

[Tritium-VLK]

Final Signer list:

Zendragon: arb1:0x7c2eA10D3e5922ba3bBBafa39Dc0677353D2AF17
Tritium: arb1:0xcf4fF1e03830D692F52EB094c52A5A6A2181Ab3F

Are already known addresses that will not KYC, but exist in bal_addresses and have history of operating with balancer multisigs.

Will ask the 3 new kyc signers to load up a transaction that sends 0 arb to the grant safe. This transaction will be executed as on-chain record of signer liveliness.

[Tritium-VLK]

Proof of liveliness from KYC signers. All 3 signed this TX:

https://app.safe.global/transactions/tx?id=multisig_0xb6BfF54589f269E248f99D5956f1fDD5b014D50e_0x192e580eba1b6d3925812f31ad5f08e649eb38557fc99e125309e3201e4d000a&safe=arb1:0xb6BfF54589f269E248f99D5956f1fDD5b014D50e

[Tritium-VLK]

Safe and signers are verified:
https://app.safe.global/home?safe=arb1:0xb6BfF54589f269E248f99D5956f1fDD5b014D50e

[Tritium-VLK]

@Zen-Maxi as the other known Maxi signer on this safe, can you just review this PR and the process and make sure it all looks kosher. Then go ahead and approve/merge this PR.

[Zen-Maxi]

Straight forward enough to me. Looks good.