Provide better support for SCP to Windows servers

Currently Bamboo escapes files it sends via SCP to a remote server with single quote. On Windows, depending on:

• SSH server and its configuration escaped path is not handled properly, as a result file arrived on host server is wrapped with single quote, e.g 'my_app.exe'

Scope of the issue:

• Provide better support for cases when SSH server can't handle paths properly.

Workarounds

1. The following server handle path properly:
   • Cygwin SSH Server
   • MobaSSH
2. Set PowerShell as the default Windows shell for SSH:
   Run this from an Administrator Powershell session

   New-ItemProperty -Path "HKLM:\SOFTWARE\OpenSSH" -Name DefaultShell -Value "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -PropertyType String -Force
   

   •  More information: Configuring the default shell for OpenSSH in Windows