Description

This PR definitely removes Truffle. It consists mainly of replacing

• the {from : address} by the connect(address) ethers pattern
• the accounts by ethers's signers
• replace use of tx.logs by const { events } = tx.wait() pattern
• get rid of some web3 dependencies (such as OZ helpers)

NB: this is a MAJOR rewriting for the tests as w e are removing the legacy test suite so this PR will affect most test files

Issues

Fixes # Refs #

Checklist:

• [ ] 1 PR, 1 purpose: my Pull Request applies to a single purpose
• [ ] I have commented my code, particularly in hard-to-understand areas
• [ ] I have updated the docs to reflect my changes if applicable
• [ ] I have added tests (and stories for frontend components) that prove my fix is effective or that my feature works
• [ ] I have performed a self-review of my own code
• [ ] If my code involves visual changes, I am adding applicable screenshots to this thread

Release Note Draft Snippet

ok, this one is scary :D

Closing as @clemsos will use a different approach....