
This method delegates VESTS from one account to another.

Parameters:
    delegator: The name of the account delegating VESTS (type: const string
	&)
    delegatee: The name of the account receiving VESTS (type: const string
	&)
    vesting_shares: The amount of VESTS to delegate (type: const
	wallet_serializer_wrapper<hive::protocol::asset> &)
    broadcast: true if you wish to broadcast the transaction (type: bool)
