Test for Typed Bucket Replication

Riak test that:

- Brings up 2 1-node clusters, connects, enables and starts real time replication
- Defines type A on both source and sink cluster
- Defines type B only on source cluster
- Replicates a riak object of type A; ensures that the object is replicated correctly
- Replicates a riak object of type B and ensures the object is not replicated

Associated PR:

https://github.com/basho/riak_repl/pull/490