Draft: ByBit exploiter exclusion

This is a starting point for a tool to be used by node operators if they all elect to.

This refreshes a list made specifically to keep track of the ByBit exploiter addresses and refunds their tx if there is a match. This design expects is an all or nothing and does not allow per node flexibility.

This still needs:

• validate this is an ok design fitting for a short term solution
• add the block check in the quote querier
• tests

optionally:

• add the block list check in the liquidity handlers

Notes:

• I am not a regular Thorchain contributor
• I am not a Go programmer
• I am not a node operator and no longer a participant of any kind in the protocol