MAGN-5056 Create zero touch example project.

http://adsk-oss.myjetbrains.com/youtrack/issue/MAGN-5056

PTAL:
- [ ] @lukechurch 

Merge Required:
- [ ] Revit2015
I think we need to add a comment to make it clear that not all ZT libraries have to implement IGraphicItem. We could put it in // quotes inside the method so it doesn't appear on the library