Replace ValueError with warnings.warn for discouraged schema keys#19

CoolCat467 merged 5 commits intoCoolCat467:mainCoolCat467/Neuro-API:mainfrom

KTrain5169:no-throw-on-discouraged-schema-keysKTrain5169/Neuro-API:no-throw-on-discouraged-schema-keysCopy head branch name to clipboard