Made PropertyList use it's own list specific flags from prototype and update the flags in list instances based on the type defined - example: _postman_listIndexKey, _postman_listIndexCaseInsensitive.
Made PropertyList use it's own list specific flags from prototype and update the flags in list instances based on the type defined - example: _postman_listIndexKey, _postman_listIndexCaseInsensitive.

This prevents object clutter and adds reliability to the list operation functions

postmanlabs/postman-collection