[HGP-49] Epoch 6 Chain Connectors Poll

• A quarterly poll that places chain connectors into Gold, Silver and Bronze tiers, which define the level of maintenance that the Foundation spends on each connector. • The choices for this poll are the current chain connectors which have Gateway connectors (https://hummingbot.org/chains/) • The Foundation will treat the Gold chain connector as the "gold standard" and map all of its swap and liquidity provision endpoints and support instances on all major chains. For the Silver, we will utilize HBOT developer bounties to fund improvements and fixes. • Any other chain connector that meets the Minimum Voting Power threshold is a Bronze chain connector. The Foundation does not maintain Bronze chain connectors nor will we allocate bounties for them, but they may be maintained by a member of the community. • In addition, these are the allocated bounties for Gold chain connector at 1,000,000 HBOT, for Silver at 250,000 HBOT, and no allocation for Bronze chain connector. • Chain connectors that don't meet the Minimum Voting Power threshold (200K) will be removed from the codebase.