Add property descriptions to exported variables

[DeerTears]

To make the whole experience easier for users, I'd like to add docstrings to all user-facing variables and options.

I've started on the config_folder tool, my goal is to have a short and sweet description that ideally answers 3 questions:

1. What does this change about my final result?
2. Does this option affect Godot or Trenchbroom?
3. Is it optional? (Do I need to configure this for each map/project?)

If not all questions can be answered in 1-4 short sentences, link to the appropriate docs page: https://qodotplugin.github.io/

• TrenchbroomGameConfig
• TrenchbroomTag
• TrenchbroomFaceAttrib
• QodotFGDClass
• QodotFGDBaseClass
• QodotFGDFile
• QodotFGDPointClass
• QodotFGDSolidClass
• QodotPlugin
• QodotTextureLoader
• QodotUtil
• QodotMap
• QodotEntity
• QodotNode3D

I've written some class descriptions in https://qodotplugin.github.io/docs/class-reference (some are a bit wordy) and you are all free to copy, add, reword, and condense what's written into docstrings.

Here's how to add documentation to any property: https://docs.godotengine.org/en/latest/tutorials/scripting/gdscript/gdscript_documentation_comments.html Don't worry about adding special bbcode for now, we can always clean that stuff up later.