PARTY — Clarify when set_contact_information replaces an existing contact point

Issue: Clarify when set_contact_information replaces an existing contact point vs. adds another.

Suggested Action: Add text to method description that explicitly indicates that the contact information is replaced if the type and effective dates match exactly with a preexisting set of contact information. The new contact information will be added if either the type or the date range of effectivity various from the existing set of contact information.