feat: ecs

[craftablescience]

• [x] Move to ECS over current custom inheritance-based solution using entt
  • [x] Transform
  • [x] Meshes
  • [x] Lights
  • [x] Scripts
  • [x] Camera

Current bugs:

• Lighting is broken
• When a script component is destructed it crashes (deleted context?)
• Show/hide grid button in editor does nothing

Note: sound + physics coming as soon as this PR is in