Create a public dataset and guideline/playbook for use by public

Expose a public dataset w/ schema details and how to use them. 

For eg:

• We could have a parquet dump somewhere, where one could read from generate their own hudi tables. 
• We could have playbook to create diff types of hudi tables(COW/MOR) by reading from this source. 
• We could add a playbook to use deltastreamer to read from this source one file at a time and inject to hudi table.