Add Gyro3V2PoolFactory

[sschuldenzucker]

Description

There is a new version of the Gyroscope 3CLP that allows scaling by rateproviders. This version adds the relevant factory events and pool events. This is framed as version 2 of the 3CLP, analogously to the ECLP.

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Dependency changes
• Code refactor / cleanup
• Documentation or wording changes
• Other

How should this be tested?

The new factory for this pool on Base is added to networks.yaml. No other such factories are deployed at the moment.

We have a pool created from this factory here: https://basescan.org/address/0x94deF775bf3Ef614A5325f50f0B8ba1a13198d52#readContract

We should test for this pool that:

1. The pool is included correctly as a Gyro3Pool version 2
2. The two rateproviders (for two of the three tokens, the third one being zero) are included correctly.
3. The minting of LP shares (from seeding) is processed correctly

Checklist:

• I have performed a self-review of my own code
• I have requested at least 1 review (If the PR is significant enough, use best judgement here)
• I have commented my code where relevant, particularly in hard-to-understand areas

dev -> master

• I have checked that all beta deployments have synced
• I have checked that the earliest block in the polygon pruned deployment is block, date/time
  • The earliest block is more than 24 hours old
• I have checked that core metrics are the same in the beta and production deployments

Merges to dev

• I have checked that the graft base is not a pruned deployment