Added 9 tested related to Samples (06 Python, 14 curves)

Added tests related to samples for Curves. Dynamo files which are there is samples are not associated with rfa files so I have created new folder Samples under Revit folder which is having Dynamo files with associated with AllCurves.rfa so that it can created geometries inside revit.

For Python examples, tests are written but marked as Ignore. Will to talk to Ian about there failure, because earlier added tests are also commented out.