DOCS-823 - Break up integration framework article

[jpipkin1]

Purpose of this pull request

This pull request breaks up the following article into smaller articles:
https://help.sumologic.com/docs/platform-services/automation-service/integration-framework/

Select the type of change

• Minor Changes - Typos, formatting, slight revisions
• Update Content - Revisions, updating sections
• New Content - New features, sections, pages, tutorials
• Site and Tools - .clabot, version updates, maintenance, dependencies, new packages for the site (Docusaurus, Gatsby, React, etc.)

Ticket (if applicable)

DOCS-823

[jpipkin1]

Reviewers, after the PR is published, I'll add the redirect from the old article to the new one. If I add it now, it will break the build check because this PR removes the old article.