Rns integration

[jonathansmirnoff]

Background

In this PR we have done the RNS integration. For more information about it please go check https://dev.rootstock.io/rif/rns/.

Changes

It was created a new NamingService for Rns.

Code Review

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

Please select all applied standards relevant to this PR.

Confirmation

• Assignee Confirmation - I (the author) have filled out the template above
• Reviewer Confirmation - I (a/the reviewer) confirm 1) the author has filled out the template and checked the box that says Assignee Confirmation 2) I reviewed the code and selected all applicable items in the code review section.