Decouple register func

[pikonha]

Decouple functions from the register

All Submissions:

• Have you followed the guidelines in our Contributing document?
• Have you checked to ensure there aren't other open Pull Requests for the same update/change?

Description

The register function now doesn't handle setting records, setting resolver, and setting primary name. These functions are now redirected to the respective contract through the getDeferralHandler view call.

Related Issue

#239
#246

Changes

• New feature implementation
• Bug fix
• Code refactoring
• Documentation update
• Other (please specify)

Changes to Core Features:

• Have you added an explanation of what your changes do and why you'd like us to include them?
• Have you written new tests for your core changes, as applicable?
• Have you successfully run tests with your changes locally?

Additional Notes