Add two more HP Vectra models.

[toggo9]

Summary

This PR adds two more HP Vectras, based on 430FX.

These are:
HP Vectra VE/5 xxx Series 2 (with GU.07.02/07.05)
HP Vectra 500 Series xxx/MT

Checklist

• Closes #xxx
• I have tested my changes locally and validated that the functionality works as intended
• I have discussed this with core contributors already
• This pull request requires changes to the ROM set
  • I have opened a roms pull request - https://github.com/86Box/roms/pull/changeme/

References

Provide links to datasheets or other documentation that helped you implement this pull request.