Subaddress Account Index Support
Looking at the docs for monero-rs it appears subaddress creation doesn't support major and minor account indexes

https://monerodocs.org/public-address/subaddress/

https://docs.rs/monero/latest/monero/util/address/struct.Address.html#method.subaddress or associated helper method could take in indexes for computing a subaddress view key.

At the maintainers of this library is interested in supporting this behavior or is it preferred for the caller to compute their own view keys for subaddresses?