Add action plugins to restrict untrusted execution

There are actions undertaken by action plugins in normal ansible that
allow for executing code on the host that ansible is executing on. We do
not want to allow that for untrusted code, so add a set of action
plugins that override the upstream ones and simply return errors.

Additionally, we can trap for attempts to execute local commands in the
normal action plugin by looking at remote_addr, connection and
delegate_to.

Change-Id: I57dbe5648a9dc6ec9147c8698ad46c4fa1326e5a
43 files changed