- Added two sample test cases for showing how we can test Geometry.

- Added new cs file for geoemtry testing.
- Added one more overload for "Convert" method in Utils.cs
- Added few new reference to make this work.

- Let me know Is this a right way to do the verification for the Geometry objects. 
- I was also not sure where to put these tests, so just added ExperimentalGeometryTests.cs inside DynamoCoreTests project.