Roadmap for planned milestone

[ray-chew]

This is how I will approach the next issues:

• 1. Make Coriolis work in all coordinate pairs #9, in particular, for both gravity and Coriolis to make horizontal slices work.
• 2. Then I can start reinstating the initial conditions, Reinstate initial conditions #54, in particular for the double shallow water vortex which would test point 1, and the 3D rising bubble and baroclinic instability tests.
• 3. With the 3D test case, I will work on Make sure 3D simulations work again #53.
• 4. Then once that is done, I can start preparing the documentation, Recreate all documentation #58.
• 5. Finally, remember to repair the documentation CI, Repair CI for documentation #59.