Support new container bundles in Pacemaker 1.1.17

In Pacemaker 1.1.17, a new resource type will be added: container bundles.

For more detail, see the related mailing list post:

http://lists.clusterlabs.org/pipermail/users/2017-April/005380.html

Proposed XML syntax:

```

```

crmsh syntax could be something along the lines of...

```
bundle httpd \
docker image=pcmk:httpd replicas=3 \
network ip-range-start=192.168.24.112 host-netmask=24 port=80 \
storage root source-dir=/srv/www target-dir=/var/www/html options=rw \
storage logs source-dir-root=/var/log/pacemaker/bundles target-dir=/etc/httpd/logs options=rw \
primitive apache ocf:heartbeat:apache
```

Start by reading the linked mailing-list post and compare the proposed XML bundle syntax with the crmsh command-line syntax in the issue. Trace how crmsh currently represents and parses resource types, then determine the tests and entry points needed to support bundles; done means the shown bundle definition can be accepted and managed.

Written by the indexing model from the issue text.