Editor macros such as `EDITOR_GET` and `EDSCALE` are not available

### Godot version

Godot 4.3-stable (but this problem happens just with compiling a godot-cpp project)

### godot-cpp version

master 6facde3c29abe4d8b0ff365c252c9aeb16fc5f66

### System information

macOS 14.6.1 arm64

### Issue description

The `EDITOR_GET` macro defined in the engine's `editor/editor_settings.h` is not available in godot-cpp.

```cpp
#define EDITOR_GET(m_var) _EDITOR_GET(m_var)
Variant _EDITOR_GET(const String &p_setting);
```

Meaning that this line of editor code will compile in an engine module, but not in godot-cpp:

```cpp
const real_t zoom_inertia = EDITOR_GET("editors/3d/navigation_feel/zoom_inertia");
```

Other editor-specific macros are also missing, such as `EDSCALE`, `TTR`, `ERR_THREAD_GUARD`, and functions such as `get_editor_theme_icon`, and more.

### Steps to reproduce

Add `EDITOR_GET` or `EDSCALE` into a godot-cpp project and notice that they are missing, no matter what you include. Another option is to just do a search in godot-cpp and you will not find these strings anywhere in it.

### Minimal reproduction project

I'm not gonna bother including a minimal reproduction project since it can be reproduced by pasting one line of code into an empty GDExtension project.