Restore Root Gauge Mocks

[EndymionJkb]

Description

Root Gauge Mocks are required for the fork tests of some root gauges (e.g., Avalanche). They are not used in the monorepo, but need to be in the build-info for the deployment fork tests to work.

There is a way to import them into the deployments repo (e.g., src/contracts/helpers), but this is undesirable, as the mock contracts are directly dependent on the root gauges themselves, and we do not want to introduce a dependency on liquidity-mining in the deployments repo.

So, the compromise is to leave them in the monorepo, and document in both places where the files are coming from.

Type of change

• Bug fix
• New feature
• Breaking change
• Dependency changes
• Code refactor / cleanup
• Documentation or wording changes
• Other

Checklist:

• The diff is legible and has no extraneous changes
• [N/A] Complex code has been commented, including external interfaces
• [N/A] Tests are included for all code paths
• The base branch is either master, or there's a description of how to merge

Issue Resolution

[jubeira]

🚢 ♻️