Type 'Noise' does not provide any constructors in C#

### Tested versions

Reproducible in Godot 4.3 stable dotnet and 4.2.2 stable dotnet, when using C#

### System information

Windows 11

### Issue description

From my limited experimentation, I assume that this is because the inbuilt Noise class is abstract. Whilst this isn't an issue with GDScript, it prevents C# scripts inheriting from this class, as the language - as far as I know - requires classes to have a constructor, and should provide one by default - although that appears not to be the case here, because its not an actual C# class, but a wrapper of some sort. IDK, I'm not really familiar with the inner workings of Godot.


### Steps to reproduce

Create a C# class that inherits from Noise, and try to build the project.

### Minimal reproduction project (MRP)

N/A

Reproduce the failure in Godot 4.3 stable .NET by creating a C# class that inherits from Noise and building the project. Then inspect the C# wrapper for Noise; done means the derived class builds successfully while the existing GDScript behavior remains unaffected.

Written by the indexing model from the issue text.