Add test throwing exception with inner exception in iterator
Add test throwing exception with inner exception in iterator

(cherry picked from commit 4956b3e)

QuantConnect/pythonnet,AlexCatarino/pythonnet,AlexCatarino/pythonnet,pythonnet/pythonnet,yagweb/pythonnet,QuantConnect/pythonnet,pythonnet/pythonnet,AlexCatarino/pythonnet,AlexCatarino/pythonnet,yagweb/pythonnet,pythonnet/pythonnet,yagweb/pythonnet,yagweb/pythonnet,QuantConnect/pythonnet