Remove the need to understand the internal data flow payload

A previous unreleased version of the dataflow toolkit added additional properties to the DataflowIntegration class to allow more controlled access to things like the database guid, table guide, record information, and custom properties. We should add this back to make use of the tool easier for users.

Start by locating the DataflowIntegration class and reviewing how database guid, table guide, record information, and custom properties currently flow through the toolkit. Compare this with the previous unreleased version if it is available. Done means users can access these properties without understanding the internal data flow.

Written by the indexing model from the issue text.