Update parsing and saving of multiple rule summaries for one condition

[gordonfarrell]

PULL REQUEST

Summary

Updates parsing to return lists of summaries per condition. Then, for either postgres or sql server, loops through the list to save all conditions

Related Issue

Fixes #2922

Acceptance Criteria

• The message parser returns an array of rule summaries per condition
• Metadata saving loops through all arrays and saves conditions and rules along with their relationships

Additional Information

Anything else the review team should know?

Checklist

• If this code affects the other scrum team, have they been notified? (In Slack, as reviewers, etc.)

[JNygaard-Skylight]

LGTM