Add --use-encryption option for winrm

@adamedx  @NimishaS  @kaustubh-d 

Added changes for --use-encryption option. It will decide use of 'winrm-s' patch for winrm communication.

Probably needs to be reworded. Something like 'The --encrypt-winrm-transport option is only supported when this tool is invoked from a Windows-based system.'