GetVersion return string with Tarantool CLI version info.

IsLess returns true if verLeft is less than verRight.

Parse parses a version string and return the version value it represents.

ParseTt parses a tt version string with format '<major>.<minor>.<patch>.<hash>' and return the version value it represents.

CliSeparator is used in commands to specify version.

FsSeparator is used in file names to specify version.

VersionSlice attaches the methods of sort.Interface to []Version, sorting from oldest to newest.