feat: Support Unix socket connection

[Soremwar]

Closes #149

• Guess the route for the unix socket when passing a folder
• Test reconnection
• Default to unix sockets instead of localhost
• Document unix socket on connection strings (requires absolute, must be encoded, etc)
• Document unix socket required permissions
• Document unix socket as default when no host is specified in connection options
• Document unix socket as default when no host is specified in connection string
• Find a way of dealing with unstable