
Set up a vesting withdraw route. When vesting shares are withdrawn, they
will be routed to these accounts based on the specified weights.

Parameters:
    from: The account the VESTS are withdrawn from. (type: const string &)
    to: The account receiving either VESTS or HIVE. (type: const string &)
    percent: The percent of the withdraw to go to the 'to' account. This is
	denoted in hundreths of a percent. i.e. 100 is 1% and 10000 is
	100%. This value must be between 1 and 100000 (type: uint16_t)
    auto_vest: Set to true if the from account should receive the VESTS as
	VESTS, or false if it should receive them as HIVE. (type: bool)
    broadcast: true if you wish to broadcast the transaction. (type: bool)
