prototype java code generation

[t-aniba]

Dev estimate: 0
Test estimate: 0
PM estimate: 20

Explore how to generate java code. Existing tools for .NET are in
https://github.com/tedglaza-msft/ag-iodide/tree/dev/prototypes/Hydra/Hydra

And the spec is in
https://github.com/tedglaza-msft/ag-iodide/tree/dev/prototypes/Hydra/Microsoft.WindowsAzure.Management.Specification

Goals:

• Understand existing code generation (tools, models, etc.)
• Prototype something simple to generate java code from attributed c#
• Get a feel for how long it takes to write code to generate something in java.

[andrerod]

This was done