Revisit Vector and Graphics code split/duplication

This serves as a reminder to revisit duplicate and dead code between mathics-core and https://github.com/Mathics3/Mathics3-Module-vectorizedplot

## Priority

Look at some time after the 10.0 release



## Additional context

See https://github.com/Mathics3/mathics-core/pull/1736#issuecomment-4092400254 and https://github.com/Mathics3/Mathics3-Module-vectorizedplot