Assert accounts extension storage layout

[thrilok209]

Create a hardhat script that asserts the local accounts extension's storage layout against the deployed accounts extension's storage layout.

We can use openzeppelin-upgrades lib's helper functions like -
assertStorageUpgradeSafe, getStorageLayout, etc....

Current accounts extension:

1. Default -
   • Code: https://github.com/Instadapp/dsa-contracts/tree/master/contracts/v2/accounts/default
   • Deployed mainnet address: 0x28aDcDC02Ca7B3EDf11924102726066AA0fA7010
2. Module-1 -
   • Code: https://github.com/Instadapp/dsa-contracts/tree/master/contracts/v2/accounts/module1
   • Deployed mainnet address: 0x8a3462A50e1a9Fe8c9e7d9023CAcbD9a98D90021

Basic structure of the script: https://github.com/InstaDApp/dsa-contracts/blob/b9a488eba6c9a876ed20aaddb35f443128f00c69/scripts/validateStorageLayout.js#L2