Student Registry System Contract

Description

This PR introduces new features to the Student Registry system The following implementations are included:

• StudentStruct.sol: Defines the Student structure.
• Ownable.sol: Provides ownership management functionality.
• StudentRegistry.sol: contains functionalities for paying fees, admin withdrawal, and managing students.
• student.sol: this contract is an abstraction for interacting with the StudentRegistry contract.
• IStudentRegistry.sol: Interface for the StudentRegistry contract.

New Changes:

• Implemented student payment.
• Ensures the student payment is made before adding to the registry.
• Get a single student.
• Add a student to the student Registry.
• Delete a student from the student Registry.
• Update a student record in the student Registry.

Tests

• Manual Testing:
  • Compiled the contract locally and manually tested the functionalities.
  • Deployed the contract locally and tested the functions.