Abstract common attributes necessary for tracking external segments/spans

[bizob2828]

Description

In #2169 we discovered the logic for creating and assigning external segments/spans was cobbled together. We should provide convenience methods for capturing the necessary naming conventions for segments, and all of its necessary segment and span attributes.

Acceptance Criteria

As a Node.js engineer I should be able to call a convenience method to track an external http call as a segment with the appropriate attributes.

Additional Context

grpc instrumentation is in violation of what needs to be captured, this abstraction will help this out. undici and http-outbound are the other places external segments are captured

[workato-integration]

https://new-relic.atlassian.net/browse/NR-264335