Update acceptance tests to use host methods

In order to be platform flexible when running tests we need to have methods to be able to run chmod and update the modified date on files on hosts.

These requirements were found in Facter acceptance tests.
-chmod - change permissions on files/dirs
-modified_at - updating the modification date on a file
-rm_rf - for deleting files/dirs
-mkdir_p - create directory structure

At the moment these were used running linux based commands (chmod, touch, mkdir, rm) that are not compatible with windows cmd or powershell.