Summary

Normalize and validate all telecom data upon receipt, instead of when emitting the values for evaluation.

Acceptance Criteria

• Remove Telecom.phone and Telecom.email methods
• Add a Telecom model validator to validate and normalize phone numbers
• Add a Telecom model validator to validate email addresses (no need to normalize)
• Update feature_iter to emit the appropriate email/phone values
• Update site/reference.md to give guidance on how phone is normalized

Details / Tasks

For phone number, please consider using phonenumbers or another lib to parse the incoming number and produce a E164 string.

Validate email addresses with an email regex.

Both email addresses and phone numbers should use the normalize_text method in the feature_iter.