Reorder C# script properties to fix editor serialization

[hayahane]

Fixes #96983

[raulsntos]

I tested these changes and they fix the linked issue. However, properties exported by overriding _get_property_list now appear under the base class properties:

4.3.0	This PR

But this was also introduced by #93779 and we missed it.

[hayahane]

I tested these changes and they fix the linked issue. However, properties exported by overriding _get_property_list now appear under the base class properties:

Pushed a fix for this. And I also found when _get_property_list is overridden, the base class's _get_property_list doesn't work. However in gdscript it works. Here is a similar test with derived class in #70146.
I only enable it for the derived class since I don't know how to call the base class's _get_property_list.

GDScript	C#

[raulsntos]

And I also found when _get_property_list is overridden, the base class's _get_property_list doesn't work.

That's because in Godot _get_property_list is a multi-level function and it's treated as such in GDScript, but C# doesn't treat it as a multi-level function and you have to call base._GetPropertyList from the implementation.

But it would be a more involved fix for a pre-existing issue (#75271), so it can handled in a follow-up PR.

[hayahane]

In this pr, only the _get_property_list overridden in the script will be called, and those from base classes will not. This should fix previous property ordering issue leaving #75271 for a future pr. (Currently don't have any idea how to call a method in base class from cpp side.)
Does this behaviour fit?

[raulsntos]

Yes, I think this is an improvement over what we had before. Thanks!

[raulsntos]

LGTM

[akien-mga]

Thanks!