added bogus client app example 

This is how I'd approach the problem of using only configman to do the hbase_client app.  I'm using  `aggregations` to pull the command and positional arguments into the configuration namespaces.  This should work just great, but there is no facility to do help this way.  I'm going to have to think about this a little.  

this code isn't even syntax checked - merge and use at your own risk.