Sync eng/common directory with azure-sdk-tools for PR 1317#647

scbedd merged 2 commits intomasterAzure/azure-sdk-for-ios:masterfrom

sync-eng/common-feature/docs-pull-tools-from-tag-1317Azure/azure-sdk-for-ios:sync-eng/common-feature/docs-pull-tools-from-tag-1317Copy head branch name to clipboard