add test for excel files#235

Enovotny merged 25 commits intomainHydrologicEngineeringCenter/cwms-python:mainfrom

156-blob-endpoint-fails-to-store-excelfails-to-determine-encodingHydrologicEngineeringCenter/cwms-python:156-blob-endpoint-fails-to-store-excelfails-to-determine-encodingCopy head branch name to clipboard