Add pass-the-sha1 for non domain joined machines

[rxwx]

This PR allows the user to specify the /password flag in SHA1 format when the machine is not domain-joined (i.e. local). These SHA1 passwords are calculated as SHA1(UTF16LE(password)), which is output by mimikatz' sekurlsa::msv. This feature mirrors the functionality already provided to support PtH for NTLM on domain-joined machines.

Note that when using the masterkeys command with a /target specified (e.g. a path to directory containing masterkeys), SharpDPAPI will not attempt to detect domain-joined-ness via the BK file (since it may not exist simply because the user didn't copy it from the target system) - therefore I've also added the /local flag which can be specified along with /target to force the SHA1 path.