Many cleanup modifications, added comments, and standardized data types
Many cleanup modifications, added comments, and standardized data types

Went through the schema and corrected some errors, modified and
standardized numeric and text data types across the schemas, lengthened
text most text data types, and added comments describing attributes in
many missing cases.

ODM2/ODM2ControlledVocabularies,ODM2/ODM2ControlledVocabularies,miguelcleon/ODM2