Added one more TestCase for CBN Samples.

Added one more scenario for CBN Samples.

Updated one test case to have verification on CBN rather than having verification on Point node.

<h4>Reviewer</h4>
- [ ] @Randy-Ma 

<h4>Need merge in</h4>
- [ ] Revit2015

Test is passing on latest build:
![image](https://cloud.githubusercontent.com/assets/5109531/4472224/af77bc76-4944-11e4-8938-18668110aa3c.png)