[Feature] Update Stash to be inline with Stash-Box

[stg-annon]

Is your feature request related to a problem? Please describe.
Stash-Box has progressed beyond Stash in some areas and it would be Ideal to keep the structures of things like scenes in sync

Describe the solution you'd like
Addition of the following features that currently exist in Stash-Box

Scenes

• Studio Codes
  [Feature] Add Scene code #2607
  [Feature] Add fields director and (studio) code to scenes #3051
• Performer Scene Alias
  [Feature] Scene aliases for Performers "Jane Doe as Jane" #3825
• Director
  [Feature] Add fields director and (studio) code to scenes #3051
• Multiple URLs
  [Feature] Expanded support for external links for Stash Entities #1868

Performers

• Disambiguation
  [Feature] Multiple performers same name #638
• Split Aliases - $100 Bounty
  [Feature] Enhanced performer aliases with studio association #422
  [Feature] Studio based performer structure needed! #2341
  [Feature] Performer alias(es) in Auto-Tag #2507
• Multiple URLs
  [Feature] Allow multiple url's for a performer #703
• Multiple Display Images - $70 Bounty
  [Feature] Multiple performer image #571
• Defined Nationality
  Change performer country value to be ISO code #1922
• Tattoo & Piercing location/description structure
• Performer Merging
  [Feature] Merging performers and scenes #1351

Tags

• Descriptions - $50 Bounty
  [Feature] Add Descriptions to Tags #1444
• Categories
  [Feature] Separating tags for higher-level objects #1253
• StashIDs - $52.34 Bounty
  [Feature] Add StashID's to Tags #2643

Additional context
Attempting to collect discrepancies between stash/stash-box in a formal Issue, I'll add any more to the list as I find or am made aware of them

[AdultSun]

Some more for the list:

• Performer/Scene/Studio - Multiple URLs
• Performer - Multiple Images
  • Larger project, options have been discussed before
• Performer - Differing field types
  • Stash-Box has split fields for tattoos/piercings/measurements, multiple entries for aliases, dropdowns for eyes/hair/nationality/etc., while Stash has simple text boxes for all of these. Multiple approaches could address this, including changing how various fields are handled in Stash, Stash-Box, or both.
• Tags - Add descriptions, categories, StashIDs

We should also make an issue for the reverse at some point, meaning features missing from Stash-Box that have been added to Stash.