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 inside tests\revit which is having Dynamo files with associated with AllCurves.rfa. Now they can create geometries inside revit and all newly added tests are passing.

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.