Create residual viscosity package +rv and generalize the ResidualViscosity class - Generalize residual viscosity, by passing user-defined flux and calculating the time derivative outside of the update. - Create separate RungekuttaRV specifically using interior RV updates - Separate the artifical dissipation operator from the scheme AdvectionRV1D so that the same scheme can be reused for creating the diff op used by the ResidualViscosity class

% Calls the constructor of an object.
% Might be usefull to call the constructor of a subclass object in the superclass
function obj = callConstructor(subclassObj, varargin)
    fun = str2func(class(subclassObj));
    obj = fun(varargin{:});
end