Different tool modes, normal tools and paused/inactive tools

[eon-s]

Tool scripts can break things while working on them even if you are careful with is_editor_hint safeguards, so, to avoid reading input or running process callbacks, we could use some special tool modes that ignore these active callbacks.

Like, adding a new @tool_paused annotation and leaving the active one as @tool.
Or @tool(active:bool=true) if possible with the annotation system.

Inactive/paused tools will then start with all input and process disabled in the editor making them simpler without polluting the main game logic.