Added support for specifying the local address or port to SshConnection.

Adds ability to bind to a specific local host address and local port to SshConnection via options 'localAddress' and 'localPort', like OpenSSHs' '-b' parameter.
Binding to a specific local address or port may be necessary for compliance with network policies (e.g. routing or firewall settings).

replaces PR bastiaanb:feature-SshConnection-bindAddress-option