BeefySwapper v2

[ReflectiveChimp]

@kexleyBeefy

• update forge-std to 1.94 (for vm.expectPartialRevert, requires latest version of foundry)
• update BaseTestHarness/WrapperTest/ProdVaultTest to use newer forge-std
• Add multi-hop support to BeefySwapper
• Add more tests for BeefySwapper
• Make BeefySwapper implement IBeefySwapper
• Add ability to set slippage by asset (pair)? with default fallback
• Add tests for slippage settings
• Make upgradable via timelock
• Add test for upgradability
• Way to toggle oracle check by pair (aka allow minAmountOut=0)
• Use roles granulary allow other accounts to set swap routes / oracles
• Way to have multiple routes for same pair (for when main route is the same CLM pool doing the swap which happens when liquidity is withdrawn)
  • store in mapping(address => mapping(address => mapping(bytes32 => SwapInfo))) [input=>output=>routeId=>SwapInfo]
  • use a fixed bytes32 for default route or mapping(address => mapping(address => bytes32))) [input=>output=>defaultRouteId] to allow setting/changing
  • add mapping(address => mapping(address => mapping(address=> bytes32))) [input=>output=>msg.sender=>routeId] to set route id for pair for a specific sender (e.g. strategy address)
  • add methods to set/change/delete the aboves
• Way to set min swap amount for each pair and/or route that takes account of decimals/prices of all tokens in the route, so strategies can read and not try to do a swap that will fail because it gets rounded down to zero
• (Question) Is mapping(bytes32 => XXX) cheaper than mapping(address => mapping(address => XXX)), (where the bytes32 key is keccak256(abi.encodePacked(address,address)))?