[FR] Left handed coordinate

Is your feature request related to a problem? Please describe.
I wish I could use game engine in left handed coordinate system. And so if possible I would like to have this engine can switch between coordinate as an argument or compiler macro, or have separate branch

Describe the solution you'd like
Ideally it should be setting in the project and can set as default setting in machine when installing

Describe alternatives you've considered
Maybe just have compiler directive that allow us to recompile this codebase into another coordinate

• What are the usecases?
  Z forward is more sensible. I don't want to decrease Z to go forward

• Is the feature affecting behaviour in the editor?
  The gizmos would swap direction and increase Z value will really make everything go forward as it should be

The issue does not name files, tests, or entry points. Start by mapping where coordinate-system assumptions are defined across the engine and editor, including gizmo behavior. Done would require a supported project-level or build-time choice for left-handed coordinates, with consistent forward direction and editor gizmos.