MB-12087: License the example data properly

The beer sample comes from the Open Beer Database and is licensed
under the Open Database License and Database Contents License.

The gamesim sample was generated by Couchbase and is licensed under
the Apache License 2.0.

Change-Id: Ia5b6c5eba2440cb2d2da443f8b78b46d88313e4c
Reviewed-on: http://review.couchbase.org/40983
Reviewed-by: Sriram Melkote <siri@couchbase.com>
Tested-by: Sriram Melkote <siri@couchbase.com>