Create Examples and Test Usability for Java G2Config SDK

[barrycaceres]

Write test programs or extended examples of how to use the Java SDK.
This is a test of usability of the Java SDK.
In general:

1. The use of the SDK feels "natural" in the Java environment. No surprises.
2. Parameters are easy to create.
3. Outputs are easy to use and parse
4. Error management is straight forward
5. No "side-effects" of calling methods
6. No "traps".
   1. Minimize/eliminate temporal coupling (init/destroy, open/close)