Adding smart contract for voting dapp

[gurusinb]

Description

Please include a summary of the change and which issue is fixed. Please also include relevant motivation and context. List any dependencies that are required for this change.

Fixes # (issue)

What features have been added or changed/Fixed(In Points)(Required)

-

Blockchain this work is compatible with(Required)

Type of change(Required)

Please delete options that are not relevant.

• [ ] Bug fix (non-breaking change which fixes an issue)
• [x] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
• [ ] This change requires a documentation update

Checklist(Required):

• [x] My code follows the style guidelines of this project
• [x] I have performed a self-review of my own code
• [x] I have commented my code, particularly in hard-to-understand areas
• [x] I have made corresponding changes to the documentation
• [x] My changes generate no new warnings
• [x] I have added tests that prove my fix is effective or that my feature works
• [x] New and existing unit tests pass locally with my changes
• [x] Any dependent changes have been merged and published in downstream modules

Output Screenshots(Required)

[mbcse]

@gurusinb Please fill the pull request template and also make an issue for this and link that issue here

[mbcse]

@gurusinb The contract is also not perfect and does not include all functions. Please solve the issues I have raised and complete the contract into a fully implementable election contract

[gurusinb]

What other functions are required? Please help.

[mbcse]

What other functions are required? Please help.

Functions like banning candidates, adding voting period, not allowing contract address to vote, etc. You can search for multiple implementations of election contracts on internet, club them and make a single all rounder one