Add Cassandra 0.7 ttypes module
Add Cassandra 0.7 ttypes module

With the new mechanism for importing ttypes, we need to have
the correct ttypes module for each version of Cassandra.

driftx/Telephus,Metaswitch/Telephus,Metaswitch/Telephus,ClearwaterCore/Telephus,driftx/Telephus,ClearwaterCore/Telephus