The immediate type will be FC_*ARRAY, so rtype needs to use the referred 
type to get the base type.

Also update the typeformat-string offset of the type.

credui: The pszUserName parameter in CredUIPromptForCredentialsW is in/out so dump the string on entry to the function.

server: Add get_token_statistics server call and use it to implement the TokenStatistics and TokenType levels for NtQueryInformationToken.