Add new colab notebook for AdalFlow data class implementation

[ajithvcoder]

Added a new notebook for dataclass tutorial based on following issues

• https://github.com/SylphAI-Inc/AdalFlow/issues/194
• https://github.com/SylphAI-Inc/AdalFlow/issues/123

[ajithvcoder]

@liyin2015 let me know if the notebook is fine

[liyin2015]

@ajithvcoder This is great work to show more complicated dataclass structure. I have left comments and basically need to add "No optional" in the dataclass. And please adjust to this new info and rerun the test again. And then it should be good to go!

Also, please rebase to the main as the current base failed on tests

[ajithvcoder]

@liyin2015 @Sylph-AI i will do the required changes but it wont pass the ci/cd because there is no quotes here . i have addressed similar issues in this pr https://github.com/SylphAI-Inc/AdalFlow/pull/227 . root cause: 3455b0321730d252defb2bb350a0a9ce9c74fac6

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[ajithvcoder]

@liyin2015 i have made the changes kindly review, its a single file which is not in Adalflow/main branch so i didnt rebase it. Also it has successfully passed the checks

[ajithvcoder]

found a method for rebasing and i have rebased it also