Add methods for versioning

Added methods which allow to work with SemVer2 compatible versions
in GIT repositories.

Change-Id: I7b8c5ed289f0d4adbe500416d296511a0f6a52df
Related-Prod: https://mirantis.jira.com/browse/PROD-30728
Related-Prod: https://mirantis.jira.com/browse/PROD-31021
1 file changed