smb accessor: Implement local and hash authentication; Fix Typo

[duhirsch]

Since the used smb library (go-smb2) supports local authentication and password authentication I lifted this functionality into Velociraptor.
There currently is neither documentation nor GUI adaptation for this feature but you can use it in the following ways:
For local authentication you can specify ".\" in front of your username, e.g. ".\Administrator".
For hash authentication it can be used by prefixing the hash with "ntlm:" and enter it into the password field, e.g. "ntlm:7AF0A56215582EFAA29563258AE43312".

[CLAassistant]

All committers have signed the CLA.

[scudette]

Thanks for this PR - can you please elaborate on a use case for providing the hash directly during DFIR? Usually we use this accessor to access e.g. a file share and a password is more easily provided.

[duhirsch]

Good point. I stumbled over this option while implementing local auth and thought "If it's already there, why not use it. Also looks like an easy change".