Compile enabled scene editing mode

[Kejoko]

When enabled via compilation commands, we want to have the ability to enter a debug mode, which will enable certain functions within the scene.

This needs to be something which can allow for extension, so we can add more utility in the future.
This should effectively enable a mapping from input to function.

We need to consider that we will have a debug UI in the future, so we must design this in accordance with UI inputs and keypress inputs.

Examples of features that debug mode will enable:

• UI for adding doodads and selecting scenes
  • save dialogue
  • create dialogue
• selection of doodad in scene via mouse click
  • highlighting
  • information UI
  • editable fields
    • model
    • physics properties
    • scripts