Delegate User Profiles using DID pallet

[stojanov-igor]

Refactor the existing DAO pallet to incorporate the DID pallet: https://github.com/substrate-developer-hub/pallet-did

The DID pallet is already used to transfer ownership of a DAO.

In addition, we can delegate User profiles to Another account for a certain number of blocks.

• Delegate user profile
• Add unit tests

Budget: $30