New SemVer class

What does this Merge Request do?

This MR introduces a new SemVer class for the purpose of parsing and comparing versions. The bulk of the logic comes from Gem::Version.

Used as part of !1157 (merged)

Merge Request checklist

• Tests added for new functionality. If not, please raise Issue to follow-up.
• This change is backward compatible. If not, please include steps to communicate to our users.
• Documentation added/updated, if needed.
• gdk doctor test added, if needed.