addToBlackList/removeFromBlackList and destroyBlockedFunds Functions

The DD is governed by a stringent set of usage conditions, which includes a blacklisting system. When an account is blacklisted, it is prohibited from sending or receiving DD. Individual user addresses can be blacklisted, effectively restricting the use of transfer and transferFrom functions through the addToBlackList command. Additionally, assets held by blacklisted users can be removed via the destroyBlockedFunds function. This mechanism is in place to ensure compliance with legal requirements and mitigate risks associated with illicit activities. User addresses can be restored to normal functions once removed from the blocklist using the removeFromBlackList command.