Setting Linear.weight is not reflected in 'parameters()'

[NiklasGustafsson]

When the 'weight' property of a linear layer (and probably others, too) is set, the new tensor is not reflected in the parameters list.

[NiklasGustafsson]

Debugging it, it seems like setting the 'weight' field in the native code implementation of Linear does not alter what its 'parameters()' function returns.

This suggests that we will have to re-implement the Module.parameters() function in C# to not rely on native code, instead assembling the parameters from each module in .NET code. I need to think a bit about that.