Allow clients to control Retry specification #259
                
     Merged
            
            
          
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Notion frequently throws 500-504 errors, especially for large collections and pages. While there is existing suggestion (#234), I agree with the comment in the code, its risky to retry non-idempotent behaviour.
This PR will allow clients to specify the retry object as part of the client initialisation, since client has the best knowledge about retry safety. It's a new optional parameter and if not specified, it will use the current retry logic. I have migrated a a collection with 40000+ rows and 50000 pages linking into it with this changes. Thoughts?