Clarification on version

[dbetteridge]

Hey @djkottmann

Just wanted to see if I could clarify what version of SMB is being targeted by this library?

https://docs.microsoft.com/en-us/openspecs/windows_protocols/ms-smb2/5606ad47-5ee0-437a-817e-70c366052962

I'm looking at adding some commits (if you're open to it) to allow the basics of listing/reading files and folders and just want to make sure its the right protocol.

Thanks

Daniel