Catch when bad time zone is found and proceed with out any zone infor…#102

danhamill merged 2 commits intomainHydrologicEngineeringCenter/hec-dss-python:mainfrom

Bugfix-ZoneInfo-cant-find-zoneHydrologicEngineeringCenter/hec-dss-python:Bugfix-ZoneInfo-cant-find-zoneCopy head branch name to clipboard