refactor: bridges should not be opinionated on src/dst chains #2727
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Note: This PR only renames state variables/files/directories. As we move more toward any<->any rebalancing capabilities, we should separate the "opinionated" bridges from others. Bridges which only exist on one network and move to another, such as all the canonical L1/L2 bridges (ex CCTP, OFT), should instead be treated as directed edges and those which can move assets from any network to any other network should be undirected.
One obvious follow-up: All l2 bridges need to implement
BaseBridgeAdapterinstead ofBaseL2BridgeAdapter(meaning the queryL2/L2Event functions need to be generalized).