Extend Event Coverage Across Contracts & Tests and Enhancements

- Add `TreasuryUpdated` Event in `ProtocolParameters.sol`
> **Why?:**  To create an immutable audit  for sensitive change or mistake

- Add `FeePaid`Event in` Contracts/EnglishAuction.sol`

> **Why?:** t:o record the exact protocol fee deducted during a withdrawal,

and many more enhancements to the tests regarding missing events

@kaneki003 Please assign

