GET /universe/constellations/{constellation_id}/ : Add nebula graphic id

[cppctamber]

Feature Request

Add nebula graphic id to the /universe/constellations/{constellation_id}/ endpoint. Relates to https://github.com/esi/esi-issues/issues/1148

Use case

Allows a user to find the graphic id for a constellation's nebula

Authentication

A public route, no auth required.

Example return

{
  "constellation_id": 20000001,
  "name": "San Matar",
  "nebula_graphic_id": 11806,
  "position": {
    "x": -94046559700991340,
    "y": 49520153153798850,
    "z": -42738731818401970
  },
  "region_id": 10000001,
  "systems": [ ...  ]
}

The nebula graphic ID can be found in the SDE in region.staticdata

Checklist

Check all boxes that apply to this issue:

• [x] Feature request description is provided
• [x] Use case exists
• [ ] Feature requires a new route
• [x] Feature adds data to existing route
• [ ] Feature requires new auth scope
• [ ] Feature can reuse existing scope
• [x] Feature does not require auth
• [ ] Meta feature, applies to all routes