Verify VGN and submodules

Pre-Commit hook that verifies vgn and submodules:

• Each submodule must have a vgn-version.txt file at the root that matches vgn version in go.mod.
• No submodules can have pending changes.
• Replace is not being used in go.mod to redirect go.kwusen.ca/vgn to a local directory.

Install

Add this to the .pre-commit-config.yaml file:

- repo: https://github.com/Kwusen/pre-commit-vgn-verify
  rev: 'v0.0.2'
  hooks:
  - id: verify-vgn