Refactored versioning to use model specific parsers

- Added Stemcell/Release/Bosh version wrappers with pre-parsing
- Added VersionList array wrapper with helper methods
- Added ReleaseVersionList array wrapper to abstract rebase logic
- Removed generic VersionNumber parser and VersionCalc comparison mixin

[#62085266]

Signed-off-by: Maria Shaldibina <mariash@pivotallabs.com>