Refactor Run resource to use Iterator pattern#86

NimishaShrivastava-dev wants to merge 3 commits intohashicorp:mainhashicorp/python-tfe:mainfrom

NimishaShrivastava-dev:Refactoring/iterator-pattern/runNimishaShrivastava-dev/python-tfe:Refactoring/iterator-pattern/runCopy head branch name to clipboard