Fix the keyspace and table creation in test code for cutouts

[genghisken]

The definition of the keyspace and the cutouts table needs to be changed to reflect the new compaction strategy (TimeWindowCompactionStrategy) and expiration of the stamps.

[genghisken]

Table creation should be something like:

CREATE TABLE cutouts.cutouts ("cutoutId" ascii,
        cutoutimage blob,
        imjd int,
        "objectId" bigint,
        PRIMARY KEY ("cutoutId", imjd) )
WITH compaction={'class': 'org.apache.cassandra.db.compaction.TimeWindowCompactionStrategy', 'compaction_window_size': '1', 'compaction_window_unit': 'DAYS'} AND default_time_to_live=86400;

Note that in the test script I'm proposing a 1 day time to live. We might even consider much shorter TTLs so we can actually test the TTL behaviour.

[RoyWilliams]

Did this experiment on lasair-lsst-dev-cutoutcass and the cutouts disappeared in 1 days.

Now I have recreated the table with the standard create table