nmb.NetBIOS.NetBIOS.queryName should call self.prepareNameQuery with the is_broadcast keyword argument

[dardyfella]

When a nmb.NetBIOS.NetBIOS object is created with the broadcast keyword parameter set to False and nmb.NetBIOS.NetBIOS.queryName is called with the ip keyword argument no reply will be received because a query packet with the broadcast flag set is still being sent. I propose the following change to correct this:

In nmb.NetBIOS.NetBIOS.queryName this line:
data = self.prepareNameQuery(trn_id, name)

Should become this line:
data = self.prepareNameQuery(trn_id, name, is_broadcast = self.broadcast)