Renaming namespace to UNISWAPV2

[swagftw]

Includes changes from #31

Checklist

• My branch is up-to-date with upstream/main branch.
• Everything works and tested for major version of Python/NodeJS/Go and above.
• I ran pre-commit checks against my changes.

Summary

Renaming namespace for consistency and clear naming

For more info check Pooler PR

Deployment Instructions

Make sure to use namespace as UNISWAPV2 in settings.json

[xadahiya]

LGTM!