Change preprocessing of Godot icons

[NathanLovato]

Currently, the preprocessor inserts a component for a Godot icon in front of a Godot symbol in backticks. For example, `Signal` becomes <IconGodot name="Signal"/> Signal. We need to change that to capture the symbol name to be able to recolor the icon and the text with it for better readability and spacing.

The markup should be: <IconGodot name="{name}" colorGroup="{colorGroup}">{name}</IconGodot>

The colorGroup attribute is one of:

• 2d
• 3d
• animation
• ui
• general
• node (for Node only)
• editor (for icons in the editor like +, etc.)

Implementation notes

I would categorize the nodes in sequences and generate a table that maps names to their color groups at compile time. Heuristics:

• Anything that ends with 2D or 3D goes to the respective group.
• Anything listed manually as part of a given group goes to that group.
• Everything else goes to general by default.

We can start there and update the data as needed.