x/blockibc IBC Transfer Middleware

Block IBC is ICS-20 (opens in a new tab) middleware to prevent IBC forwarding when the asset is the issuance asset of a tokenfactory for the following cases:

• The tokenfactory pauser has paused the movement of funds for the asset
• The tokenfactory blacklister has blacklisted the sender or the receiver of the IBC transfer

This currently applies to the tokenfactory and fiattokenfactory modules.