Chaincode example: Marbles02

This changeset introduces a new chaincode example marbles02.

marbles02 is a stripped down version of marbles providing
examples of various ledger interaction patterns:
-PutState()
-GetState()
-DelState()
-PartialCompositeKeyQuery() range query
-Creation of key/value 'indexes' for efficient range queries.
-Parameterized rich query (requires CouchDB to execute)
-Ad hoc rich query (requires CouchDB to execute)
-History of key values (coming soon)

Similar to example02, marbles02 is a simple chaincode
that can be use by anybody that wants to try out the fabric.
Unlike example02, marbles02 chaincode data is based on JSON,
enabling chaincode query.

Change-Id: I37b7074f6364ab726ba3ec760fffd2b07a9eb543
Signed-off-by: denyeart <enyeart@us.ibm.com>