Feature/tc init

[ajdas1]

Purpose

Creating an initialization for the tropical cyclone case (following the example of how the baroclinic init was set up).
It doesn't quite work all the way.
I believe that the initial fortran state is set correctly - when I compare it to the fortran restart files written out 1 second after restart, everything is identical except for small changes in winds.
But after 1 time step, all fields are set to nan.
I didn't have quite enough time to figure out why and how to fix it.

Code changes:

• Just added code, didn't change existing code.

Checklist

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[FlorianDeconinck]

Reverting the PR to inject only the WIP TC init code. All other changes to restart work has been removed.