Returns the primary .skr name of wallet as 'alice.skr', or null when the wallet has not
picked one, picked a name under another TLD, or no longer owns the name it picked.
The wallet's MainDomain account points at the name but is not updated when the name is
transferred or expires, so the name is resolved forward and its current owner compared with
wallet before it is returned. Two getAccountInfo requests at most.
Returns the primary
.skrname ofwalletas'alice.skr', ornullwhen the wallet has not picked one, picked a name under another TLD, or no longer owns the name it picked.The wallet's
MainDomainaccount points at the name but is not updated when the name is transferred or expires, so the name is resolved forward and its current owner compared withwalletbefore it is returned. TwogetAccountInforequests at most.