Assume the scp target is a file instead of a directory. Assuming the scp
target is a file instead of a directory allows uploading files to a node
being provisioned with the ssh communciator using sftp and with the
winrm communicator. It is fully compatible with ansible; ansible
communicators only allow for files (never directories) to be uploaded
(when the copy module is used to upload a directory, ansible walks the
directory and uploads files one at a time).
Update documentation to explain how to provision a Windows image.
Extend tests that use ssh to communicate with the node to include single
files, recursive copies, and content-only recursive copies.
Add test to verify support for the winrm communicator.
Remove the err argument from adapter.scpExec, because it was unused.
Fixes#3911
Handle running `scp -t` and `scp -f` exec requests in the
ansible-provisioner's SSH
server to allow Ansible to use SCP so that SFTP doesn't have to be
installed on the node.
Update the BATS tests to test the ansible provisioner.