Define CAS Versioning

[adammontville]

CAS is following a semantic versioning approach based on semver.org and having the following format: major.minor.point.

• Major: Significant and material changes to
  • The organization of the document
  • Structure of sub-control measures
  • Inputs, measures, metrics on the whole
• Minor: Material changes to parts of sub-control measures or metrics
• Point: Immaterial changes, such as prose typos, document look and feel

[adammontville]

Put in:

• RtD (front-matter)
• GH (README)
• Confluence (CAS)