Prior to this commit, if a user set the `destination` path to include a
space, the `shell_expand_guest_path` function would remove that space
and return a partial path. This commit updates that to quote the path to
be expanded to preserve the entire path.
Prior to this commit, if a file provisioner block was ran twice with a
folder on a remote host, due to how scp works, it would first copy over
that folder, and then on the second action it would copy an identical
folder nested within the first one. While this is 'intended' behavior
with scp, it is unexpected behavior for the file provisioner. This
commit updates the file provisioner to first ensure that the directory
to be copied exists on the remote host prior to copying, and then the
destination dir has been changed to the directory that the destination
will be copied to, rather than the exact directly that includes the
folder from the host to prevent the nested folder behavior.
Add a provisioner which will upload host files and directories to the
guest via the scp channel. This is useful for populating user specific
files into the guest. This is a rename from scpupload to file and updated
against master. [GH-1357]