[FEATURE] Support for BomLink #266
Description
BomLink allows items in a CycloneDX document to be referred to from another CycloneDX document or elsewhere.
CycloneDX has a formally registered URN, governed by IANA, that is compliant with RFC-8141.
This feature will add helper methods to allow for quick retrieval of the URNs for Bom, Component, Service and Vulnerability.