[FR] Move param initialization to separate method

[stroblme]

Is your feature request related to a problem? Please describe.
Currently parameters are initialized in the constructor of the Model class.
However, there is some need for re-initializing an existing model.

Describe the solution you'd like
Move the initialization to a separate method but set the strategy in the constructor, such that any external call would just have to provide a new seed.
This should also introduce the option to provide an (optional) control value to overwrite the default initialization strategy value.

Describe alternatives you've considered
N/A

Additional context
N/A