Integrate the custom doc tool

[jeff-matthews]

The Magento DevDocs team uses a custom doc tool (private repo) to autogenerate reference information about BICs on devdocs for each release.

The original author of this tool is no longer with Magento and the tool has no official owner.

This tool extends the semver tool and it would make sense to port the code for the custom doc tool to the semver tool to ensure future changes don't affect our ability to autogenerate reliable and accurate reference information for each release.

Currently, if major changes are made to the semver tool, it could break the doc tool and make our reference information incomplete, incorrect, and unreliable.