Creating supply chain smart contract in ethereum directory.

[AbhinavXT]

Description

Creating supply chain smart contract in ethereum directory and also added deploy script for the contract in the ethereum directory. Solved #14

Fixes # (issue)

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

• Adds smart contract for the supply chain.
• Adds deeply script for supply chain smart contract.

Blockchain this work is compatible with(Required)

Ethereum

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
• [] I have made corresponding changes to the documentation
• [ ] 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)