support quotation to tokenize long commands

[k5342]

We cannot run following a long command because we currently tokenize the command merely by separating it with spaces. Supporting quotation is very useful to support shell features such as pipe and redirects.

# we can't do for now
- name: ark-server-status
  exec: /bin/bash -c "systemctl status ark.service | sed -E 's/([a-zA-Z]Password=)[^?]+/\1.../g'"
  description: show systemd unit status for ARK server

But we don't think this is not a high priority because we can use this workaround by calling the long command line as a shell script.

- name: ark-server-status
  exec: /bin/bash show-status.sh
  description: show systemd unit status for ARK server