The test_provisioned_throughput.py test ProvisionedThroughput support.
The first test, check that ProvisionedThroughput can be set and get when
using describe table.
The second test check that missing read or write will throw an
exception.
The third test check that when using billing PAY_PER_REQUEST it returns
zero for the read and write units.
Signed-off-by: Amnon Heiman <amnon@scylladb.com>