Dchan/dt 902 add ens resolution js

Background

Need to add ENS support

Added ENS support and unit tests.

Need to refactor the resolution construction to not need ens

This Pull Request was thoroughly reviewed and meets all Code Review Standards pertaining to:

[ ] Implementation - satisfied acceptance criteria
[ ] Communication - notified engineers/stakeholders about impactful changes
[ ] Error handling - handled, logged & alerted on errors
[ ] Documentation - wrote readable code & commits, documented unintuitive code
[ ] Testing - unit & E2E test coverage, tested in staging, DB migrations backwards compatible
[ ] Security - sanitized inputs, vetted dependencies, validated/secured API requests, no committed secrets
[ ] Performance - optimized expensive algorithms & database queries

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