Including some additional features in Lottery and Voting smart contract

[Yash9276]

Description

I would like to contribute to this repo by adding some additional features to the Raffle/Lottery smart contract and I will improve the gas efficiency of these contracts.
So please assign it to me under the Hacktoberfest tag
Thank you :)

[github-actions]

Hello there!👋, @Yash9276 Welcome to the Solidity-Pathshala! 🚀⚡Thank you and Congratulations🎉 for opening a issue in this project. Please make sure not to start working on this issue, unless you are assigned to it.😄

[github-actions]

Hi 😄, thanks for creating your first issue at Solidity-Pathshala!🚀⚡.

[Yash9276]

can you also add Hacktoberfest tag

[Vikash-8090-Yadav]

Great, start working on this