Added Revit test for Defect MAGN-2576
Added test case for defect MAGN-2566
Added test case for defect MAGN-2363
Fixed few old failing test cases.

As Jenkins reporting some failures from so many days as no one was looking at it, so I updated few and marked few as Inconclusive because we have not migrated StingCase node.
Merge branch 'master' of https://github.com/ikeough/Dynamo into MasterNew
Folded multiple line statements into single method call for dummy node verification.

Elllensi has already added method in base class so I used the same.
Merge pull request #1547 from riteshchandawar/MasterNew

Added Revit test for Defect MAGN-2576