feature: runtime editor

[JustPyrrha]

create a editor for creating rtti patch content via a runtime overlay in focus.

the editor should be roughtly based on Guerrilla Games' Decima Editor.
presentation from initial editor development: Creating a Tools Pipeline for Horizon: Zero Dawn

• editor contexts
  • level (world)
  • sequence (cutscenes, dialog)
  • quest
  • node graph
    • might not be possible to show existing graphcs since they are highly optimised c++
    • fallback to just modded graphs if need be, include a spec for showing them while compiled.
• editor widgets
  • common windows used thoughout contexts
  • inspector
  • glam-rs
    • edit widgets
    • preview gizmos (where possible)