Added support for NCrunch

Updated ReflectionDiscoverableCollection from Glimpe. Fixes #11
Merge pull request #13 from JSkimming/NCrunchSupport

Added support for NCrunch
Added the initial tests for Yield methods
Iterate methods under test that return IEnumerable

Fixes #12.
Merge pull request #14 from JSkimming/YieldSupport

Add Yield support
Improved the XML documentation
Closes #10